Quarterly report pursuant to Section 13 or 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
3 Months Ended 12 Months Ended
Mar. 31, 2015
Dec. 31, 2011
Dec. 31, 2014
Acquisition of servicing rights   $ 2,200nct_PaymentsToAcquireCDOServicingRights  
Amortization of servicing rights 100us-gaap_AmortizationOfMortgageServicingRightsMSRs    
Servicing assets 1,000us-gaap_ServicingAsset    
Accrection of membership deposit liability 30 years    
Refundable term for initiation fees 30 years    
Deferred financing costs 400us-gaap_DeferredFinanceCostsCurrentGross   400us-gaap_DeferredFinanceCostsCurrentGross
Lower Range      
Operating lease term 10 years    
Upper Range      
Operating lease term 20 years    
American Dream Project [Member]      
Ownership in equity investment 23.00%us-gaap_EquityMethodInvestmentOwnershipPercentage
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nct_AmericanDreamProjectMember
   
Equity method investment 27,100us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nct_AmericanDreamProjectMember
  26,800us-gaap_EquityMethodInvestments
/ us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis
= nct_AmericanDreamProjectMember
Interest rate swaps [Member] | Designated as hedging instrument [Member]      
Notional amount 57,900invest_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 $ 390,000invest_DerivativeNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_OtherContractMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember
   
Interest rate caps [Member] | Not designated as hedging instrument [Member]      
Interest rate 4.85%us-gaap_DerivativeFixedInterestRate
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateCapMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_NondesignatedMember