CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net loss	$ (2,167,000)	$ (677,000)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Amortization of operating lease right-of-use asset	29,000	26,000
Loss from investments in unconsolidated entities, net	1,287,000	350,000
Distributed earnings from unconsolidated entities	11,000	0
Deferred income taxes	0	(111,000)
Changes in:
Accounts receivable	0	346,000
Income taxes payable	(183,000)	496,000
Other current assets	12,000	32,000
Accounts payable and accrued expenses	(98,000)	10,000
Operating lease right-of-use liability	(32,000)	(30,000)
Net cash (used in) provided by operating activities	(1,141,000)	442,000
Cash flows from investing activities:
Advances to unconsolidated entities	(496,000)	(359,000)
Repayments from loans to unconsolidated entities	110,000	11,000
Principal payments received under sales-type sublease	0	532,000
Net cash (used in) provided by investing activities	(386,000)	184,000
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	(1,527,000)	537,000
Cash and cash equivalents - beginning of period	2,178,000	2,030,000
Cash and cash equivalents - end of period	651,000	2,567,000
Cash paid for:
Interest	0	3,000
Income taxes	$ 0	$ 158,000