8. Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Accounts payable and accrued expenses
Accounts payable	$ 8	$ 7
Accrued audit & professional	34	40
Accrued consulting fees-related party	1	1
Environmental remediation obligations	21	25
Accrued debenture fees	134	128
Accrued miscellaneous	1	1
Total	199	202
Accrued real estate taxes consisted of:
Current real estate taxes	$ 4	$ 8