CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating Activities:
Net income	$ 2,414,000	$ 10,046,000
Income from discontinued operations, net of tax	(2,474,000)	(12,340,000)
Gain from sale of discontinued operations, net of tax	(2,961,000)	0
Net loss from continuing operations	(3,021,000)	(2,294,000)
Adjustments to reconcile net loss from continuing operations to net cash used in operating activities of continuing operations:
Depreciation and amortization	7,000	0
Stock-based compensation expense	44,000	123,000
Changes in operating assets and liabilities:
Receivable from escrow account	(200,000)	0
Income tax receivable	14,000	(24,000)
Prepaid expenses and other	(8,000)	151,000
Accounts payable	(106,000)	52,000
Accrued liabilities	376,000	(187,000)
Accrued income taxes	(11,000)	(658,000)
Net cash used in operating activities of continuing operations	(2,905,000)	(2,837,000)
Net cash provided by operating activities of discontinued operations	3,423,000	13,500,000
Net cash provided by operating activities	518,000	10,663,000
Investing Activities:
Proceeds from sale of business	1,581,000	0
Purchase of other long-term assets	(10,000)	0
Purchases of property and equipment	(39,000)	0
Net cash provided by investing activities of continuing operations	1,532,000	0
Net cash used in investing activities of discontinued operations	(24,000)	(29,000)
Net cash provided by (used in) investing activities	1,508,000	(29,000)
Financing Activities:
Proceeds from issuance of common stock, net	9,000	39,000
Repurchase of common stock, net	(482,000)	0
Net cash (used in) provided by financing activities	(473,000)	39,000
Increase in cash, cash equivalents and restricted cash	1,553,000	10,673,000
Cash, cash equivalents and restricted cash at beginning of period	14,524,000	3,851,000
Cash, cash equivalents and restricted cash at end of period	16,077,000	14,524,000
Supplemental disclosures for cash flow information:
Cash paid during the period for income taxes	88,000	464,000
Non-cash investing and financing activity:
Operating lease right-of-use asset obtained in exchange for lease obligations	8,000	38,000
Purchase of property and equipment included in accrued liabilities	3,000	1,000
Common stock issued for settlement of accrued liabilities	$ 146,000	$ 0