Quarterly report pursuant to Section 13 or 15(d)

REAL ESTATE RELATED LOANS, RESIDENTIAL MORTGAGE LOANS AND SUBPRIME MORTGAGE LOANS (Details Narrative)

v2.4.1.9
REAL ESTATE RELATED LOANS, RESIDENTIAL MORTGAGE LOANS AND SUBPRIME MORTGAGE LOANS (Details Narrative) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Face amount of real estate related loans on non-accrual status $ 76,400us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Weighted Average Yield of Retained Bonds 21.25%nct_WeightedAverageYieldRetainedBonds
Subprime Portfolio I [Member]  
Average loan seasoning 9 years 8 months 2 days
Retained Notes excluded from face amount of debt in Subprime Portfolio I $ 4,000nct_RetainedBondsFaceAmount2006SecuritizationTrust
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nct_SubprimePortfolioIMember
Weighted average coupon rate 9.24%nct_WeightedAverageCouponSubprimeSubjectToCallOption
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nct_SubprimePortfolioIMember
Subprime Portfolio II [Member]  
Average loan seasoning 8 years 2 months 1 day
Weighted average coupon rate 8.68%nct_WeightedAverageCouponSubprimeSubjectToCallOption
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nct_SubprimePortfolioIIMember