Condensed Consolidated Statements of Income and Shareholders' Equity	USD ($) $ / shares
Income Statement [Abstract]
Leasing revenue	$ 1,163,000
Expenses:
Operating	253,000
General and administrative	392,000
Total expenses	645,000
Income from operations before income taxes	518,000
Income tax expense (benefit):
Current	180,000
Deferred	(32,000)
Total Income tax expense	148,000
Net income	370,000
Retained earnings, beginning at Dec. 31, 2021	6,325,000
Income tax expense (benefit):
Dividends on common stock ($.07 per share) based upon 6,599,912 shares outstanding	(462,000)
Retained earnings, ending at Mar. 31, 2022	$ 6,233,000
Income tax expense (benefit):
Basic income per common share based upon 6,599,912 shares outstanding | $ / shares	$ 0.06
Class A common stock	$ 66,000
Capital in excess of par	782,000
Shareholders' equity, ending	7,081,000
Class A common stock	66,000
Capital in excess of par	782,000
Shareholders' equity, ending	7,112,000
Leasing revenue	1,251,000
Operating	225,000
General and administrative	352,000
Total expenses	577,000
Income from operations before income taxes	674,000
Current	212,000
Deferred	(23,000)
Total Income tax expense	189,000
Net income	485,000
Retained earnings, beginning at Dec. 31, 2022	6,264,000
Income tax expense (benefit):
Dividends on common stock ($.07 per share) based upon 6,599,912 shares outstanding	(462,000)
Retained earnings, ending at Mar. 31, 2023	$ 6,287,000
Income tax expense (benefit):
Basic income per common share based upon 6,599,912 shares outstanding | $ / shares	$ 0.07
Class A common stock	$ 66,000
Capital in excess of par	782,000
Shareholders' equity, ending	$ 7,135,000