6. Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Accounts payable and accrued expenses
Accounts payable	$ 18	$ 15
Accrued audit/tax expense	43	47
Accrued consulting fees-related party	1	1
Accrued legal	14	0
Accrued debenture fees	153	145
Accrued miscellaneous	1	1
Total	230	209
Accrued real estate taxes consisted of:
Current accrued real estate taxes	$ 0	$ 4