Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)

v2.4.1.9
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Consolidation percentage 50.00%nct_ConsolidationPercentage      
Prepayment penalties, included in interest income   $ 200nct_PrepaymentPenaltiesFinancingReceivables $ 2,700nct_PrepaymentPenaltiesFinancingReceivables  
REIT Distribution Threshold for Nontaxation 90.00%nct_REITThresholdIncomeTax 90.00%nct_REITThresholdIncomeTax    
Percentage of distribution that must be maid within the taxable year to avoid excise tax 85.00%nct_REITThresholdIncomeTaxPercentageExcise      
Allowances for uncollectable amounts 900us-gaap_AllowanceForDoubtfulAccountsReceivable 900us-gaap_AllowanceForDoubtfulAccountsReceivable    
Acquisition of servicing rights       2,200nct_PaymentsToAcquireCDOServicingRights
Amortization of servicing rights 300us-gaap_AmortizationOfMortgageServicingRightsMSRs 300us-gaap_AmortizationOfMortgageServicingRightsMSRs    
Servicing assets 1,000us-gaap_ServicingAsset      
Accrection of membership deposit liability 30 years      
Refundable term for initiation fees 30 years      
Number of days past due 90 days      
Allowance for Bad Debts [Member]        
Allowances for uncollectable amounts 11us-gaap_AllowanceForDoubtfulAccountsReceivable
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
0us-gaap_AllowanceForDoubtfulAccountsReceivable
/ us-gaap_ValuationAllowancesAndReservesTypeAxis
= us-gaap_AllowanceForDoubtfulAccountsMember
   
American Dream Project [Member]        
Ownership in equity investment 23.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nct_AmericanDreamProjectMember
     
Equity method investment 26,800us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nct_AmericanDreamProjectMember
25,500us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nct_AmericanDreamProjectMember
   
Lower Range        
Operating lease term 10 years      
Upper Range        
Operating lease term 20 years      
Interest rate swaps [Member] | Not designated as hedging instrument [Member]        
Notional amount 46,500invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
     
Interest rate 4.85%us-gaap_DerivativeFixedInterestRate
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
     
Interest rate swaps [Member] | Designated as hedging instrument [Member]        
Notional amount 58,300invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
     
Interest rate 5.04%us-gaap_DerivativeFixedInterestRate
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember
     
TBAs [Member] | Not designated as hedging instrument [Member]        
Notional amount $ 390,500invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_OtherContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember