CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net (loss) income	$ (495,000)	$ 292,000
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Amortization of operating lease right-of-use asset	10,000	8,000
Loss from investments in unconsolidated entities, net	133,000	139,000
Distributed earnings from unconsolidated entities	11,000	0
Deferred income taxes	0	0
Changes in:
Accounts receivable	0	(482,000)
Income taxes receivable/payable	(11,000)	252,000
Other current assets	18,000	19,000
Accounts payable and accrued expenses	8,000	(4,000)
Operating lease right-of-use liability	(10,000)	(10,000)
Net cash (used in) provided by operating activities	(336,000)	214,000
Cash flows from investing activities:
Advances to unconsolidated entities	(182,000)	(144,000)
Capital contributions to unconsolidated entities	(2,000)	0
Principal payments received under sales-type sublease	0	532,000
Net cash (used in) provided by investing activities	(184,000)	388,000
Cash flows from financing activities:
Repayment of finance lease obligations	0	(89,000)
Net cash used in financing activities	0	(89,000)
Net change in cash and cash equivalents	(520,000)	513,000
Cash and cash equivalents - beginning of period	2,178,000	2,030,000
Cash and cash equivalents - end of period	1,658,000	2,543,000
Cash paid for:
Interest	$ 0	$ 2,000