Segment information (Details) {Stockholder's Equity} - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Oil and Gas operations
Operating revenue	$ 259	$ 485	$ 431	$ 829
Operating expenses	324	300	628	617
Depreciation, Depletion and Amortization	116	125	282	291
Lease Expense	0	0	0	0
Total Operating Expenses	440	425	910	908
Interest Income	0	0	0	0
Interest expense	(16)	(22)	(42)	(53)
Recovery of Bad Debt Expense	0	0	0	0
Other income	0	(16)	0	0
Segment operating income	(197)	22	(521)	(132)
Retirement Facility
Operating revenue	744	728	1,461	1,453
Operating expenses	400	372	794	752
Depreciation, Depletion and Amortization	15	15	31	31
Lease Expense	245	241	490	481
Total Operating Expenses	660	628	1,315	1,264
Interest Income	0	0	0	0
Interest expense	0	0	0	0
Recovery of Bad Debt Expense	0	0	0	0
Other income	0	0	0	0
Segment operating income	84	100	146	189
Corporate
Operating revenue	0	0	0	0
Operating expenses	155	189	309	381
Depreciation, Depletion and Amortization	0	16	0	16
Lease Expense	0	0	0	0
Total Operating Expenses	155	205	309	397
Interest Income	0	1	0	2
Interest expense	0	0	0	0
Recovery of Bad Debt Expense	386	0	1,124	0
Other income	(8)	(17)	(16)	199
Segment operating income	223	(221)	799	(196)
Total.
Operating revenue	1,003	1,213	1,892	2,282
Operating expenses	879	861	1,731	1,750
Depreciation, Depletion and Amortization	131	156	313	338
Lease Expense	245	241	490	481
Total Operating Expenses	1,255	1,258	2,534	2,569
Interest Income	0	1	0	2
Interest expense	(16)	(22)	(42)	(53)
Recovery of Bad Debt Expense	386	0	1,124	0
Other income	(8)	(33)	(16)	199
Segment operating income	$ 110	$ (99)	$ 424	$ (139)