Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash flows from operating activities:
Income from continuing operations	$ 543,000	$ 485,000
Adjustments to reconcile income from continuing operations to net cash provided by operating activities, continuing operations:
Depreciation	21,000	21,000
Deferred income taxes	(16,000)	(23,000)
Changes in assets and liabilities:
Income taxes	160,000	204,000
Other	60,000	67,000
Net cash provided by operating activities, continuing operations	768,000	754,000
Cash flows from investing activities:
Purchase of investments		(1,000,000)
Discontinued operations:
Loss on sale of discontinued operation	(55,000)
Noncash adjustment to loss on sale of discontinued operations	(10,000)
Net cash used in investing activities	(65,000)	(1,000,000)
Cash flows used in financing activities, payment of dividends	(462,000)	(462,000)
Increase (decrease) in cash and cash equivalents	241,000	(708,000)
Cash and cash equivalents, beginning	652,000	1,476,000
Cash and cash equivalents, ending	893,000	768,000
Supplemental disclosures:
Cash paid for income taxes	$ 7,000	$ 7,000