| INCOME TAXES - Provision for Income Taxes (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | |
|---|---|---|
| Mar. 31, 2015 | Mar. 31, 2014 | |
| Current: | ||
| Federal | $ 46us-gaap_CurrentFederalTaxExpenseBenefit | $ 72us-gaap_CurrentFederalTaxExpenseBenefit | 
| State and Local | 12us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 61us-gaap_CurrentStateAndLocalTaxExpenseBenefit | 
| Total Current Provision | 58us-gaap_CurrentIncomeTaxExpenseBenefit | 133us-gaap_CurrentIncomeTaxExpenseBenefit | 
| Deferred | ||
| Federal | (10)us-gaap_DeferredFederalIncomeTaxExpenseBenefit | (240)us-gaap_DeferredFederalIncomeTaxExpenseBenefit | 
| State and Local | (2)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | (513)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit | 
| Total Deferred Provision | (12)us-gaap_DeferredIncomeTaxExpenseBenefit | (753)us-gaap_DeferredIncomeTaxExpenseBenefit | 
| Provision for income taxes from continuing operations | 46us-gaap_IncomeTaxExpenseBenefit | 140us-gaap_IncomeTaxExpenseBenefit | 
| Provision (benefit) for income taxes from discontinued operations | (760)us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation | |
| Total Provision (benefit) for Income Taxes | $ 46nct_IncomeTaxExpenseBenefitContinuingAndDiscontinuedOperations | $ (620)nct_IncomeTaxExpenseBenefitContinuingAndDiscontinuedOperations | 
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing and discontinued operations. No definition available. 
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- Definition Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
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- Definition Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
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- Definition Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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