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Major Classes of Assets and Liabilities (Detail) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Current assets:    
Receivables, net $ 57,000us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet  
Inventory 123,000us-gaap_InventoriesPropertyHeldForSaleCurrent  
Prepaid expenses and other current assets 4,000us-gaap_DisposalGroupIncludingDiscontinuedOperationPrepaidAndOtherAssetsCurrent  
Total current assets 184,000us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent 1,190,000us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent
Other assets 22,000us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets  
Total assets 206,000us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation  
Current liabilities:    
Accounts payable and accrued expenses 4,858,000us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilitiesCurrent  
Total current liabilities 4,858,000us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent 4,550,000us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent
Long-term lease obligations 2,756,000us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherLiabilities  
Total liabilities $ 7,614,000us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation