CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities
Net income (loss)	$ 48	$ (2,622)	$ (779)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Depreciation, depletion and amortization	664	721	732
Impairment of natural gas and oil properties	0	2,717	0
Write-off (recovery) of affiliate receivable	0	(1,430)	0
Gain on prepayment of long term debt	(888)	0	0
Gain from sale of land	(50)	0	0
Changes in operating assets and liabilities
Other current and non-current assets	7	260	5
Accounts payable and other liabilities	(95)	920	(240)
Net cash provided by (used) in operating activities	(314)	566	(282)
Cash flows from investing activities
Investment in oil and gas properties	0	(336)	(129)
Fixed asset additions	(52)	(31)	(175)
Cash from sale of land	700	116	0
Repayment of loan from affiliate	0	126	0
Collections of note receivable	38	13	0
Real estate held for investment	0	0	(650)
Net cash provided by (used) in investing activities	686	(112)	(954)
Cash flows from financing activities
Payment on notes payable	(732)	(281)	(213)
Proceeds from loans	0	0	128
Net cash provided by (used in) financing activities	(732)	(281)	(85)
Net increase (decrease) in cash and cash equivalents	(360)	173	(1,321)
Cash and cash equivalents at beginning of year	473	300	1,621
Cash and cash equivalents at end of year	113	473	300
Supplemental disclosures of cash flow information
Cash paid for interest on notes payable:	22	77	77
Cash paid for principal on notes payable:	725	279	213
Non cash portion of sale of land	0	415	0
Cash paid income taxes	$ 0	$ 0	$ 0