CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Statement of Cash Flows [Abstract]
Net income (loss)	$ (308)	$ (294)
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Depreciation, depletion and amortization	128	227
Write-off of retirement center assets	0	24
Changes in operating assets and liabilities
Other current and non-current assets	44	123
Accounts payable and other liabilities	(137)	284
Net cash provided by (used) in operating activities	(273)	364
Cash flows from investing activities
Investment in undeveloped land	0	(10)
Fixed asset additions	0	(2)
Net cash provided by (used) in investing activities	0	(12)
Cash flows from financing activities
Payment on notes payable	(39)	(32)
Sale of common stock	171	0
Net cash provided by (used in) financing activities	132	(32)
Net increase (decrease) in cash and cash equivalents	(141)	320
Cash and cash equivalents at beginning of year	419	113
Cash and cash equivalents at end of period	278	433
Supplemental disclosures of cash flow information
Cash paid for interest on notes payable:	11	13
Cash paid for principal on notes payable	$ 39	$ 32