Accounts Payable and Accrued Expenses Amendment Flag Total assets Total assets Assets: Net Assets in Liquidation Net Assets in Liquidation Ending Balance Net Assets in liquidation Beginning Balance Net Assets in Liquidation Basis of Presentation Cash and cash equivalents Commitments and Contingencies Current Fiscal Year End Date Letters of Credit Stock Options Document - Document and Entity Information [Abstract] Document - Document and Entity Information [Abstract] Document Fiscal Period Focus Document Fiscal Year Focus Document Information [Line Items] Document Period End Date Document Type Entities [Table] Entity Central Index Key Entity Common Stock, Shares Outstanding Entity [Domain] Entity Filer Category Entity Registrant Name Fair Value Income Taxes Changes in liquidation accruals Increase in receivable from FCB Holdings Increase in receivable from FCB Holdings Investment in FCB Holdings Legal Entity [Axis] Total liabilities Total liabilities Liabilities: Nature of Company Notes to Financial Statements [Abstract] Notes to Financial Statements [Abstract] Other Cash Proceeds Received in Liquidation Other cash proceeds received Other liabilities Bridge loan to FCB Holdings Bridge loan to FCB Holdings Prepaid expenses Repayment of bridge loan from FCB Holdings Real Estate Assets Net Real Estate Mahwah Real Estate Receivable from FCB Holdings Special and Non-recurring Cash Dividends [Text Block] Special Cash Distribution Statement [Line Items] Statement of Financial Position [Abstract] Statement of Stockholders' Equity [Abstract] Statement [Table] Trading Symbol Decrease in estimated value of FCB Holdings Decrease in estimated value of FCB Holdings