Condensed Consolidated Statements of Income and Shareholders' Equity	USD ($) $ / shares
Income Statement [Abstract]
Revenue	$ 1,251,000
Expenses:
Operating	225,000
General and administrative	352,000
Total expenses	577,000
Income from continuing operations before income taxes	674,000
Income tax expense:
Current	212,000
Deferred	(23,000)
Total Income tax expense	189,000
Income from continuing operations	485,000
Net income	485,000
Retained earnings, beginning at Dec. 31, 2022	6,264,000
Income tax expense:
Dividends on common stock based on 6,599,912 shares outstanding	(462,000)
Retained earnings, ending at Mar. 31, 2023	$ 6,287,000
Basic income (loss) per common share based upon 6,599,912 shares outstanding:
Continuing operations | $ / shares	$ 0.07
Total basic income per common share | $ / shares	$ 0.07
Revenue	$ 1,342,000
Operating	259,000
General and administrative	368,000
Total expenses	627,000
Income from continuing operations before income taxes	715,000
Current	188,000
Deferred	(16,000)
Total Income tax expense	172,000
Income from continuing operations	543,000
Loss on sale of discontinued operations, net of tax (Note 9)	(55,000)
Net income	488,000
Retained earnings, beginning at Dec. 31, 2023	6,743,000
Income tax expense:
Dividends on common stock based on 6,599,912 shares outstanding	(462,000)
Retained earnings, ending at Mar. 31, 2024	$ 6,769,000
Basic income (loss) per common share based upon 6,599,912 shares outstanding:
Continuing operations | $ / shares	$ 0.08
Discontinued operations | $ / shares	(0.01)
Total basic income per common share | $ / shares	$ 0.07