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Assets Held for Sale (Details) (USD $)
 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2012
Jun. 30, 2013
Dec. 31, 2012
Jun. 30, 2013
Remington Village Multifamily [Member]
Jun. 30, 2013
Remington Village Multifamily [Member]
Jun. 30, 2013
Corporate Aircraft [Member]
Jun. 30, 2013
Facilities [Member]
Long Lived Assets Held-for-sale [Line Items]                
Intended selling price of Remington Village         $ 15,400,000 $ 15,400,000    
Liabilities held for sale     9,888,000 10,022,000 9,900,000 9,900,000    
Depreciation of assets held for sale not recorded 224,000 448,000     220,000 440,000    
Principal amount of note Remington is pledged as collateral         10,000,000 10,000,000    
Selling price of asset         15,000,000 15,000,000    
Proceeds from sale of assets held for sale             1,900,000 767,000
Assets and liabilities of the multifamily housing project held for sale [Abstract]                
Cash and cash equivalents     303,000 211,000        
Accounts receivable     57,000 19,000        
Prepaid expenses     122,000 42,000        
Property, plant and equipment, net     14,775,000 14,775,000        
Restricted investment     120,000 120,000        
Assets of discontinued operations     15,377,000 15,167,000        
Corporate aircraft and related facilities     0 1,884,000        
Assets held for sale     15,377,000 17,051,000        
Accounts payable     79,000 144,000        
Accrued and other liabilities     340,000 257,000        
Long term debt     9,469,000 9,621,000        
Liabilities held for sale     $ 9,888,000 $ 10,022,000