6. Accounts Payable and Accrued Expenses (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Accounts payable and accrued expenses
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
Total	202,000	229,000
Accrued real estate taxes consisted of:
Current accrued real estate taxes	$ 8,000	$ 8,000