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			1		1		1
Net income (loss)				716	716	(28)	688
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
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			1		1		1
Investment in subsidiary from accredited investor	0	0	0	0	0	142	142
Net income (loss)	$ 0	$ 0	0	(1,262)	(1,262)	(138)	(1,400)
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