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6. Accounts Payable and Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2015
Payables and Accruals [Abstract]  
Accounts payable and accrued expenses consist
    2015     2014  
Accounts payable   $ 7,000     $ 6,000  
Accrued audit/tax expense     40,000       38,000  
Accrued consulting fees-related party     1,000       1,000  
Environmental remediation  obligations     25,000       64,000  
Accrued debenture fees     128,000       119,000  
Accrued miscellaneous     1,000       1,000  
    $ 202,000     $ 229,000  
Accrued Real Estate Taxes
    2015     2014  
Current accrued real estate taxes   $ 8,000     $ 8,000