Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Income from continuing operations	$ 485,000	$ 370,000
Adjustments to reconcile income from continuing operations to net cash provided by operating activities, continuing operations:
Depreciation	21,000	21,000
Deferred income taxes	(23,000)	(32,000)
Income taxes	204,000	168,000
Other, net changes in prepaids, property tax payable and other	67,000	126,000
Net cash provided by operating activities, continuing operations	754,000	653,000
Cash flows from investing activities:
Purchase of investments	(1,000,000)
Discontinued operations:
Cash used to settle obligations		(16,000)
Noncash adjustment to gain on sale of discontinued operations		4,000
Net cash used in investing activities, discontinued operations		(12,000)
Cash used in investing activities	(1,000,000)	(12,000)
Cash flows used in financing activities, payment of dividends	(462,000)	(462,000)
Increase (decrease) in cash and cash equivalents	(708,000)	179,000
Cash and cash equivalents, beginning	1,476,000	1,443,000
Cash and cash equivalents, ending	768,000	$ 1,622,000
Supplemental disclosure:
Cash paid for income taxes	$ 7,000