Annual report pursuant to Section 13 and 15(d)

INVESTMENTS IN OTHER REAL ESTATE - Investments in Other Real Estate (Details)

v2.4.1.9
INVESTMENTS IN OTHER REAL ESTATE - Investments in Other Real Estate (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Initial cost - land and improvements $ 90,324us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand  
Initial cost - building and improvements 136,501us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements  
Initial cost - furniture, fixtures and equipment 17,723nct_InitialCostFurnitureFixturesAndEquipment  
Initial cost - construction In-progress 5,660nct_InitialCostConstructionInprogress  
Costs capitalized subsequent to acquisition 13,815us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts  
Gross Carrying Amount - land and improvements 90,324us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand  
Gross Carrying Amount - buildings and improvements 141,156us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements  
Gross Carrying Amount - furniture, fixtures and equipment 29,590us-gaap_FixturesAndEquipmentGross  
Gross Carrying Amount - Construction in-progress 2,953us-gaap_ConstructionInProgressGross  
Gross Carrying Amount - total 264,023us-gaap_RealEstateGrossAtCarryingValue 250,208us-gaap_RealEstateGrossAtCarryingValue
Accumulated depreciation (24,740)us-gaap_RealEstateAccumulatedDepreciation [1],[2]  
Net book value 239,283us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet  
Owned Properties [Member]    
Initial cost - land and improvements 90,324us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
 
Initial cost - building and improvements 86,439us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
 
Initial cost - furniture, fixtures and equipment 5,016nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
 
Initial cost - construction In-progress 4,362nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
 
Costs capitalized subsequent to acquisition 5,769us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
 
Gross Carrying Amount - land and improvements 90,324us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
 
Gross Carrying Amount - buildings and improvements 90,211us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
 
Gross Carrying Amount - furniture, fixtures and equipment 9,050us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
 
Gross Carrying Amount - Construction in-progress 2,325us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
 
Gross Carrying Amount - total 191,910us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
[3],[4]  
Accumulated depreciation (11,205)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
[1],[2]  
Net book value 180,705us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
 
Owned Properties [Member] | Bear Creek [Member] | Woodville, WA [Member]    
Initial cost - land and improvements 3,573us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Initial cost - building and improvements 2,178us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Initial cost - furniture, fixtures and equipment 179nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Initial cost - construction In-progress 28nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Costs capitalized subsequent to acquisition 114us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Gross Carrying Amount - land and improvements 3,573us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Gross Carrying Amount - buildings and improvements 2,198us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Gross Carrying Amount - furniture, fixtures and equipment 287us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Gross Carrying Amount - Construction in-progress 14us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Gross Carrying Amount - total 6,072us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Accumulated depreciation (290)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
[1],[2]  
Net book value 5,782us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BearCreekMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodvilleWashingtonMember
 
Owned Properties [Member] | Bradshaw Farm [Member] | Woodstock, GA [Member]    
Initial cost - land and improvements 773us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BradshawFarmMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodstockGeorgiaMember
 
Initial cost - building and improvements 1,962us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BradshawFarmMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodstockGeorgiaMember
 
Initial cost - furniture, fixtures and equipment 92nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BradshawFarmMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodstockGeorgiaMember
 
Costs capitalized subsequent to acquisition 42us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BradshawFarmMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodstockGeorgiaMember
 
Gross Carrying Amount - land and improvements 773us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BradshawFarmMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodstockGeorgiaMember
 
Gross Carrying Amount - buildings and improvements 1,978us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BradshawFarmMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodstockGeorgiaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 118us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BradshawFarmMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodstockGeorgiaMember
 
Gross Carrying Amount - total 2,869us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BradshawFarmMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodstockGeorgiaMember
 
Accumulated depreciation (256)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BradshawFarmMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodstockGeorgiaMember
[1],[2]  
Net book value 2,613us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BradshawFarmMember
/ us-gaap_StatementGeographicalAxis
= nct_WoodstockGeorgiaMember
 
Owned Properties [Member] | Brookstone [Member] | Acworth, GA [Member]    
Initial cost - land and improvements 579us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BrookstoneMember
/ us-gaap_StatementGeographicalAxis
= nct_AcworthGeorgiaMember
 
Initial cost - building and improvements 2,448us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BrookstoneMember
/ us-gaap_StatementGeographicalAxis
= nct_AcworthGeorgiaMember
 
Initial cost - furniture, fixtures and equipment 200nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BrookstoneMember
/ us-gaap_StatementGeographicalAxis
= nct_AcworthGeorgiaMember
 
Costs capitalized subsequent to acquisition 702us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BrookstoneMember
/ us-gaap_StatementGeographicalAxis
= nct_AcworthGeorgiaMember
 
Gross Carrying Amount - land and improvements 579us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BrookstoneMember
/ us-gaap_StatementGeographicalAxis
= nct_AcworthGeorgiaMember
 
Gross Carrying Amount - buildings and improvements 2,916us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BrookstoneMember
/ us-gaap_StatementGeographicalAxis
= nct_AcworthGeorgiaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 434us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BrookstoneMember
/ us-gaap_StatementGeographicalAxis
= nct_AcworthGeorgiaMember
 
Gross Carrying Amount - total 3,929us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BrookstoneMember
/ us-gaap_StatementGeographicalAxis
= nct_AcworthGeorgiaMember
 
Accumulated depreciation (315)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BrookstoneMember
/ us-gaap_StatementGeographicalAxis
= nct_AcworthGeorgiaMember
[1],[2]  
Net book value 3,614us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_BrookstoneMember
/ us-gaap_StatementGeographicalAxis
= nct_AcworthGeorgiaMember
 
Owned Properties [Member] | Canyon Oaks [Member] | Chico, CA [Member]    
Initial cost - land and improvements 1,545us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Initial cost - building and improvements 4,127us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 205nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Initial cost - construction In-progress 13nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Costs capitalized subsequent to acquisition 110us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Gross Carrying Amount - land and improvements 1,545us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 4,161us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 288us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Gross Carrying Amount - Construction in-progress 6us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Gross Carrying Amount - total 6,000us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Accumulated depreciation (507)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
[1],[2]  
Net book value 5,493us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CanyonOaksMember
/ us-gaap_StatementGeographicalAxis
= nct_ChicoCaliforniaMember
 
Owned Properties [Member] | Casa Del Sol [Member] | Mission Viejo, CA [Member]    
Initial cost - land and improvements 5,794us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CasaDelSolMember
/ us-gaap_StatementGeographicalAxis
= nct_MissionViejoCaliforniaMember
 
Costs capitalized subsequent to acquisition 118us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CasaDelSolMember
/ us-gaap_StatementGeographicalAxis
= nct_MissionViejoCaliforniaMember
 
Gross Carrying Amount - land and improvements 5,794us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CasaDelSolMember
/ us-gaap_StatementGeographicalAxis
= nct_MissionViejoCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 118us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CasaDelSolMember
/ us-gaap_StatementGeographicalAxis
= nct_MissionViejoCaliforniaMember
 
Gross Carrying Amount - total 5,912us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CasaDelSolMember
/ us-gaap_StatementGeographicalAxis
= nct_MissionViejoCaliforniaMember
 
Accumulated depreciation    [1],[2]  
Net book value 5,912us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_CasaDelSolMember
/ us-gaap_StatementGeographicalAxis
= nct_MissionViejoCaliforniaMember
 
Owned Properties [Member] | El Camino [Member] | Oceanside, CA [Member]    
Initial cost - land and improvements 4,635us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Initial cost - building and improvements 2,960us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 158nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Initial cost - construction In-progress 80nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Costs capitalized subsequent to acquisition 277us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Gross Carrying Amount - land and improvements 4,635us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 3,182us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 254us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Gross Carrying Amount - Construction in-progress 39us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Gross Carrying Amount - total 8,110us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Accumulated depreciation (346)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
[1],[2]  
Net book value 7,764us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ElCaminoMember
/ us-gaap_StatementGeographicalAxis
= nct_OceansideCaliforniaMember
 
Owned Properties [Member] | Forrest Crossing [Member] | Franklin, TN [Member]    
Initial cost - land and improvements 3,187us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Initial cost - building and improvements 807us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Initial cost - furniture, fixtures and equipment 76nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Initial cost - construction In-progress 55nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Costs capitalized subsequent to acquisition 20us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Gross Carrying Amount - land and improvements 3,187us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Gross Carrying Amount - buildings and improvements 814us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Gross Carrying Amount - furniture, fixtures and equipment 117us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Gross Carrying Amount - Construction in-progress 27us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Gross Carrying Amount - total 4,145us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Accumulated depreciation (126)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
[1],[2]  
Net book value 4,019us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ForrestMember
/ us-gaap_StatementGeographicalAxis
= nct_FranklinTennesseeMember
 
Owned Properties [Member] | Gettysvue [Member] | Knoxville, TN [Member]    
Initial cost - land and improvements 2,994us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Initial cost - building and improvements 1,428us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Initial cost - furniture, fixtures and equipment 235nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Initial cost - construction In-progress 181nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Costs capitalized subsequent to acquisition 281us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Gross Carrying Amount - land and improvements 2,994us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Gross Carrying Amount - buildings and improvements 1,619us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Gross Carrying Amount - furniture, fixtures and equipment 417us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Gross Carrying Amount - Construction in-progress 89us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Gross Carrying Amount - total 5,119us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Accumulated depreciation (273)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
[1],[2]  
Net book value 4,846us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_GettysvueMember
/ us-gaap_StatementGeographicalAxis
= nct_KnoxvilleTennesseeMember
 
Owned Properties [Member] | Lomas Santa Fe [Member] | Solana Beach, CA [Member]    
Initial cost - land and improvements 3,766us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_LomasMember
/ us-gaap_StatementGeographicalAxis
= nct_SolanaBeachCaliforniaMember
 
Costs capitalized subsequent to acquisition 48us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_LomasMember
/ us-gaap_StatementGeographicalAxis
= nct_SolanaBeachCaliforniaMember
 
Gross Carrying Amount - land and improvements 3,766us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_LomasMember
/ us-gaap_StatementGeographicalAxis
= nct_SolanaBeachCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 24us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_LomasMember
/ us-gaap_StatementGeographicalAxis
= nct_SolanaBeachCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 24us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_LomasMember
/ us-gaap_StatementGeographicalAxis
= nct_SolanaBeachCaliforniaMember
 
Gross Carrying Amount - total 3,814us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_LomasMember
/ us-gaap_StatementGeographicalAxis
= nct_SolanaBeachCaliforniaMember
 
Net book value 3,814us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_LomasMember
/ us-gaap_StatementGeographicalAxis
= nct_SolanaBeachCaliforniaMember
 
Owned Properties [Member] | Marbella [Member] | SJ Capistrano, CA [Member]    
Initial cost - land and improvements 5,794us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MarbellaMember
/ us-gaap_StatementGeographicalAxis
= nct_CapistranoCaliforniaMember
 
Initial cost - building and improvements 9,114us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MarbellaMember
/ us-gaap_StatementGeographicalAxis
= nct_CapistranoCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 410nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MarbellaMember
/ us-gaap_StatementGeographicalAxis
= nct_CapistranoCaliforniaMember
 
Costs capitalized subsequent to acquisition 425us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MarbellaMember
/ us-gaap_StatementGeographicalAxis
= nct_CapistranoCaliforniaMember
 
Gross Carrying Amount - land and improvements 5,794us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MarbellaMember
/ us-gaap_StatementGeographicalAxis
= nct_CapistranoCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 9,248us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MarbellaMember
/ us-gaap_StatementGeographicalAxis
= nct_CapistranoCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 701us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MarbellaMember
/ us-gaap_StatementGeographicalAxis
= nct_CapistranoCaliforniaMember
 
Gross Carrying Amount - total 15,743us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MarbellaMember
/ us-gaap_StatementGeographicalAxis
= nct_CapistranoCaliforniaMember
 
Accumulated depreciation 62us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MarbellaMember
/ us-gaap_StatementGeographicalAxis
= nct_CapistranoCaliforniaMember
[1],[2]  
Net book value 15,805us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MarbellaMember
/ us-gaap_StatementGeographicalAxis
= nct_CapistranoCaliforniaMember
 
Owned Properties [Member] | Monterey [Member] | Palm Desert, CA [Member]    
Initial cost - land and improvements 5,698us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Initial cost - building and improvements 3,004us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 202nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Initial cost - construction In-progress 19nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Costs capitalized subsequent to acquisition 337us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Gross Carrying Amount - land and improvements 5,698us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 3,170us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 383us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Gross Carrying Amount - Construction in-progress 9us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Gross Carrying Amount - total 9,260us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Accumulated depreciation (430)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
[1],[2]  
Net book value 8,830us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_MontereyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Owned Properties [Member] | Oakhurst [Member] | Clayton, CA [Member]    
Initial cost - land and improvements 1,449us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Initial cost - building and improvements 2,575us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 428nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Initial cost - construction In-progress 1,645nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Costs capitalized subsequent to acquisition (427)us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Gross Carrying Amount - land and improvements 1,449us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 2,636us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 599us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Gross Carrying Amount - Construction in-progress 986us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Gross Carrying Amount - total 5,670us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Accumulated depreciation (2,297)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
[1],[2]  
Net book value 3,373us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OakhurstMember
/ us-gaap_StatementGeographicalAxis
= nct_ClaytonCaliforniaMember
 
Owned Properties [Member] | Oregon Golf Club [Member] | West Linn, OR [Member]    
Initial cost - land and improvements 4,828us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Initial cost - building and improvements 8,011us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Initial cost - furniture, fixtures and equipment 416nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Initial cost - construction In-progress 51nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Costs capitalized subsequent to acquisition 364us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Gross Carrying Amount - land and improvements 4,828us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Gross Carrying Amount - buildings and improvements 8,085us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Gross Carrying Amount - furniture, fixtures and equipment 732us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Gross Carrying Amount - Construction in-progress 25us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Gross Carrying Amount - total 13,670us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Accumulated depreciation (889)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
[1],[2]  
Net book value 12,781us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OregonGolfMember
/ us-gaap_StatementGeographicalAxis
= nct_WestLinnOregonMember
 
Owned Properties [Member] | Palm Valley [Member] | Palm Desert, CA [Member]    
Initial cost - land and improvements 7,531us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Initial cost - building and improvements 8,864us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 379nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Initial cost - construction In-progress 56nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Costs capitalized subsequent to acquisition 494us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Gross Carrying Amount - land and improvements 7,531us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 9,144us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 621us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Gross Carrying Amount - Construction in-progress 28us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Gross Carrying Amount - total 17,324us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Accumulated depreciation (962)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
[1],[2]  
Net book value 16,362us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PalmValleyMember
/ us-gaap_StatementGeographicalAxis
= nct_PalmDesertCaliforniaMember
 
Owned Properties [Member] | Plantation [Member] | Boise, ID [Member]    
Initial cost - land and improvements 2,607us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Initial cost - building and improvements 2,236us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Initial cost - furniture, fixtures and equipment 262nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Initial cost - construction In-progress 13nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Costs capitalized subsequent to acquisition 202us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Gross Carrying Amount - land and improvements 2,607us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Gross Carrying Amount - buildings and improvements 2,262us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Gross Carrying Amount - furniture, fixtures and equipment 445us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Gross Carrying Amount - Construction in-progress 6us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Gross Carrying Amount - total 5,320us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Accumulated depreciation (336)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
[1],[2]  
Net book value 4,984us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_PlantationMember
/ us-gaap_StatementGeographicalAxis
= nct_BoiseIdahoMember
 
Owned Properties [Member] | Rancho San Joaquin [Member] | Irvine, CA [Member]    
Initial cost - land and improvements 12,650us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Initial cost - building and improvements 3,775us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 279nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Initial cost - construction In-progress 1,366nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Costs capitalized subsequent to acquisition 199us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Gross Carrying Amount - land and improvements 12,650us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 4,336us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 609us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Gross Carrying Amount - Construction in-progress 674us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Gross Carrying Amount - total 18,269us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Accumulated depreciation (458)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
[1],[2]  
Net book value 17,811us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_RanchoSanJoaquinMember
/ us-gaap_StatementGeographicalAxis
= nct_IrvineCaliforniaMember
 
Owned Properties [Member] | Seascape [Member] | Aptos, CA [Member]    
Initial cost - land and improvements 2,897us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Initial cost - building and improvements 4,944us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 108nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Initial cost - construction In-progress 67nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Costs capitalized subsequent to acquisition 103us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Gross Carrying Amount - land and improvements 2,897us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 4,985us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 204us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Gross Carrying Amount - Construction in-progress 33us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Gross Carrying Amount - total 8,119us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Accumulated depreciation (457)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
[1],[2]  
Net book value 7,662us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SeascapeMember
/ us-gaap_StatementGeographicalAxis
= nct_AptosCaliforniaMember
 
Owned Properties [Member] | Summitpointe [Member] | Milpitas, CA [Member]    
Initial cost - land and improvements 2,511us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Initial cost - building and improvements 3,271us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 128nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Initial cost - construction In-progress 8nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Costs capitalized subsequent to acquisition 132us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Gross Carrying Amount - land and improvements 2,511us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 3,330us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 205us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Gross Carrying Amount - Construction in-progress 4us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Gross Carrying Amount - total 6,050us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Accumulated depreciation (344)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
[1],[2]  
Net book value 5,706us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SummitpointeMember
/ us-gaap_StatementGeographicalAxis
= nct_MilpitasCaliforniaMember
 
Owned Properties [Member] | Sunset Hills [Member] | Thousand Oaks, CA [Member]    
Initial cost - land and improvements 2,125us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SunsetHillsMember
/ us-gaap_StatementGeographicalAxis
= nct_ThousandOaksCaliforniaMember
 
Initial cost - building and improvements 5,447us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SunsetHillsMember
/ us-gaap_StatementGeographicalAxis
= nct_ThousandOaksCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 383nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SunsetHillsMember
/ us-gaap_StatementGeographicalAxis
= nct_ThousandOaksCaliforniaMember
 
Costs capitalized subsequent to acquisition 249us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SunsetHillsMember
/ us-gaap_StatementGeographicalAxis
= nct_ThousandOaksCaliforniaMember
 
Gross Carrying Amount - land and improvements 2,125us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SunsetHillsMember
/ us-gaap_StatementGeographicalAxis
= nct_ThousandOaksCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 5,506us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SunsetHillsMember
/ us-gaap_StatementGeographicalAxis
= nct_ThousandOaksCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 573us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SunsetHillsMember
/ us-gaap_StatementGeographicalAxis
= nct_ThousandOaksCaliforniaMember
 
Gross Carrying Amount - total 8,204us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SunsetHillsMember
/ us-gaap_StatementGeographicalAxis
= nct_ThousandOaksCaliforniaMember
 
Accumulated depreciation (674)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SunsetHillsMember
/ us-gaap_StatementGeographicalAxis
= nct_ThousandOaksCaliforniaMember
[1],[2]  
Net book value 7,530us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_SunsetHillsMember
/ us-gaap_StatementGeographicalAxis
= nct_ThousandOaksCaliforniaMember
 
Owned Properties [Member] | Tanoan [Member] | Albuquerque, NM [Member]    
Initial cost - land and improvements 1,642us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Initial cost - building and improvements 7,600us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Initial cost - furniture, fixtures and equipment 431nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Initial cost - construction In-progress 364nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Costs capitalized subsequent to acquisition 419us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Gross Carrying Amount - land and improvements 1,642us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Gross Carrying Amount - buildings and improvements 7,982us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Gross Carrying Amount - furniture, fixtures and equipment 652us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Gross Carrying Amount - Construction in-progress 180us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Gross Carrying Amount - total 10,456us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Accumulated depreciation (1,025)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
[1],[2]  
Net book value 9,431us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TanoanMember
/ us-gaap_StatementGeographicalAxis
= nct_AlbuquerqueNewMexicoMember
 
Owned Properties [Member] | Trophy Club of Apalachee [Member] | Dacula, GA [Member]    
Initial cost - land and improvements 483us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClubMember
/ us-gaap_StatementGeographicalAxis
= nct_DaculaGeorgiaMember
 
Initial cost - building and improvements 640us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClubMember
/ us-gaap_StatementGeographicalAxis
= nct_DaculaGeorgiaMember
 
Initial cost - furniture, fixtures and equipment 55nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClubMember
/ us-gaap_StatementGeographicalAxis
= nct_DaculaGeorgiaMember
 
Costs capitalized subsequent to acquisition 163us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClubMember
/ us-gaap_StatementGeographicalAxis
= nct_DaculaGeorgiaMember
 
Gross Carrying Amount - land and improvements 483us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClubMember
/ us-gaap_StatementGeographicalAxis
= nct_DaculaGeorgiaMember
 
Gross Carrying Amount - buildings and improvements 781us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClubMember
/ us-gaap_StatementGeographicalAxis
= nct_DaculaGeorgiaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 77us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClubMember
/ us-gaap_StatementGeographicalAxis
= nct_DaculaGeorgiaMember
 
Gross Carrying Amount - total 1,341us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClubMember
/ us-gaap_StatementGeographicalAxis
= nct_DaculaGeorgiaMember
 
Accumulated depreciation (98)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClubMember
/ us-gaap_StatementGeographicalAxis
= nct_DaculaGeorgiaMember
[1],[2]  
Net book value 1,243us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClubMember
/ us-gaap_StatementGeographicalAxis
= nct_DaculaGeorgiaMember
 
Owned Properties [Member] | Trophy Club of Atlanta [Member] | Alpharetta, GA [Member]    
Initial cost - land and improvements 483us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClub1Member
/ us-gaap_StatementGeographicalAxis
= nct_AlpharettaGeorgiaMember
 
Initial cost - building and improvements 3,898us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClub1Member
/ us-gaap_StatementGeographicalAxis
= nct_AlpharettaGeorgiaMember
 
Initial cost - furniture, fixtures and equipment 60nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClub1Member
/ us-gaap_StatementGeographicalAxis
= nct_AlpharettaGeorgiaMember
 
Costs capitalized subsequent to acquisition 93us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClub1Member
/ us-gaap_StatementGeographicalAxis
= nct_AlpharettaGeorgiaMember
 
Gross Carrying Amount - land and improvements 483us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClub1Member
/ us-gaap_StatementGeographicalAxis
= nct_AlpharettaGeorgiaMember
 
Gross Carrying Amount - buildings and improvements 3,966us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClub1Member
/ us-gaap_StatementGeographicalAxis
= nct_AlpharettaGeorgiaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 85us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClub1Member
/ us-gaap_StatementGeographicalAxis
= nct_AlpharettaGeorgiaMember
 
Gross Carrying Amount - total 4,534us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClub1Member
/ us-gaap_StatementGeographicalAxis
= nct_AlpharettaGeorgiaMember
 
Accumulated depreciation (342)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClub1Member
/ us-gaap_StatementGeographicalAxis
= nct_AlpharettaGeorgiaMember
[1],[2]  
Net book value 4,192us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_TrophyClub1Member
/ us-gaap_StatementGeographicalAxis
= nct_AlpharettaGeorgiaMember
 
Owned Properties [Member] | Vista Valencia [Member] | Valencia, CA [Member]    
Initial cost - land and improvements 1,352us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ValenciaMember
/ us-gaap_StatementGeographicalAxis
= nct_ValenciaCaliforniaMember
 
Initial cost - building and improvements 5,199us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ValenciaMember
/ us-gaap_StatementGeographicalAxis
= nct_ValenciaCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 91nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ValenciaMember
/ us-gaap_StatementGeographicalAxis
= nct_ValenciaCaliforniaMember
 
Costs capitalized subsequent to acquisition 249us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ValenciaMember
/ us-gaap_StatementGeographicalAxis
= nct_ValenciaCaliforniaMember
 
Gross Carrying Amount - land and improvements 1,352us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ValenciaMember
/ us-gaap_StatementGeographicalAxis
= nct_ValenciaCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 5,411us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ValenciaMember
/ us-gaap_StatementGeographicalAxis
= nct_ValenciaCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 128us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ValenciaMember
/ us-gaap_StatementGeographicalAxis
= nct_ValenciaCaliforniaMember
 
Gross Carrying Amount - total 6,891us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ValenciaMember
/ us-gaap_StatementGeographicalAxis
= nct_ValenciaCaliforniaMember
 
Accumulated depreciation (503)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ValenciaMember
/ us-gaap_StatementGeographicalAxis
= nct_ValenciaCaliforniaMember
[1],[2]  
Net book value 6,388us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_ValenciaMember
/ us-gaap_StatementGeographicalAxis
= nct_ValenciaCaliforniaMember
 
Owned Properties [Member] | Wood Ranch [Member] | Sim Valley, CA [Member]    
Initial cost - land and improvements 2,125us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Initial cost - building and improvements 1,951us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Initial cost - furniture, fixtures and equipment 239nct_InitialCostFurnitureFixturesAndEquipment
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Initial cost - construction In-progress 416nct_InitialCostConstructionInprogress
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Costs capitalized subsequent to acquisition 723us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Gross Carrying Amount - land and improvements 2,125us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Gross Carrying Amount - buildings and improvements 2,302us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Gross Carrying Amount - furniture, fixtures and equipment 822us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Gross Carrying Amount - Construction in-progress 205us-gaap_ConstructionInProgressGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Gross Carrying Amount - total 5,454us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Accumulated depreciation (339)us-gaap_RealEstateAccumulatedDepreciation
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
[1],[2]  
Net book value 5,115us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_WoodRanchMember
/ us-gaap_StatementGeographicalAxis
= nct_SimValleyCaliforniaMember
 
Owned Properties [Member] | Other [Member]    
Initial cost - land and improvements 9,303us-gaap_RealEstateAndAccumulatedDepreciationInitialCostOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OtherOwnedPropertyMember
 
Costs capitalized subsequent to acquisition 332us-gaap_RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionCarryingCosts
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OtherOwnedPropertyMember
 
Gross Carrying Amount - land and improvements 9,303us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OtherOwnedPropertyMember
 
Gross Carrying Amount - buildings and improvements 175us-gaap_RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OtherOwnedPropertyMember
 
Gross Carrying Amount - furniture, fixtures and equipment 157us-gaap_FixturesAndEquipmentGross
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OtherOwnedPropertyMember
 
Gross Carrying Amount - total 9,635us-gaap_RealEstateGrossAtCarryingValue
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OtherOwnedPropertyMember
 
Net book value $ 9,635us-gaap_SECScheduleIIIRealEstateInvestmentPropertyNet
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= nct_OtherOwnedPropertyMember
 
[1] The following is a rollforward of the gross carrying amount and accumulated depreciation of other real estate for the years ended December 31, 2014 and 2013.
[2] Depreciation is calculated on a straight line basis using the estimated useful lives detailed in Note 2.
[3] None of the gains (losses) recorded in earnings during the periods is attributable to the change in unrealized gains (losses) relating to Level 3 assets still held at the reporting dates.
[4] These gains (losses) are recorded in the following line items in the consolidated statements of income: (See Schedule of gains losses on fair value of RE securities).