Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member] Common Class A [Member]	Common Stock [Member] Common Class B [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Dec. 31, 2020	3,287,647	611,784
Balance at Dec. 31, 2020	$ 33	$ 6	$ 59,196	$ (22,142)	$ 37,093	$ (126)	$ 36,967
Stock options - compensation costs			3		3		3
Net income (loss)	$ 0	$ 0	0	1,458	1,458	(46)	1,412
Balance (in shares) at Jun. 30, 2021	3,287,647	611,784
Balance at Jun. 30, 2021	$ 33	$ 6	59,199	(20,684)	38,554	(172)	38,382
Balance (in shares) at Mar. 31, 2021	3,287,647	611,784
Balance at Mar. 31, 2021	$ 33	$ 6	59,197	(21,426)	37,810	(154)	37,656
Stock options - compensation costs			2		2		2
Net income (loss)				742	742	(18)	724
Balance (in shares) at Jun. 30, 2021	3,287,647	611,784
Balance at Jun. 30, 2021	$ 33	$ 6	59,199	(20,684)	38,554	(172)	38,382
Balance (in shares) at Dec. 31, 2021	3,287,647	611,784
Balance at Dec. 31, 2021	$ 33	$ 6	59,201	(20,171)	39,069	(92)	38,977
Stock options - compensation costs			2		2		2
Net income (loss)	0	0	0	(778)	(778)	(218)	(996)
Investment in subsidiary from accredited investor	$ 0	$ 0	0	0	0	142	142
Balance (in shares) at Jun. 30, 2022	3,287,647	611,784
Balance at Jun. 30, 2022	$ 33	$ 6	59,203	(20,949)	38,293	(168)	38,125
Balance (in shares) at Mar. 31, 2022	3,287,647	611,784
Balance at Mar. 31, 2022	$ 33	$ 6	59,202	(21,433)	37,808	(88)	37,720
Stock options - compensation costs			1		1		1
Net income (loss)	$ 0	$ 0	0	484	484	(80)	404
Balance (in shares) at Jun. 30, 2022	3,287,647	611,784
Balance at Jun. 30, 2022	$ 33	$ 6	$ 59,203	$ (20,949)	$ 38,293	$ (168)	$ 38,125