Condensed Consolidated Statement 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, 2022	3,287,647	611,784
Balance at Dec. 31, 2022	$ 33	$ 6	$ 59,205	$ (20,754)	$ 38,490	$ (347)	$ 38,143
Net income (loss)			0	(1,677)	(1,677)	(122)	(1,799)
Stock options - compensation costs			1	0	1	0	1
Balance (in shares) at Mar. 31, 2023	3,287,647	611,784
Balance at Mar. 31, 2023	$ 33	$ 6	59,206	(22,431)	36,814	(469)	36,345
Balance (in shares) at Dec. 31, 2023	3,287,647	611,784
Balance at Dec. 31, 2023	$ 33	$ 6	59,206	(22,529)	36,716	(616)	36,100
Net income (loss)	$ 0	$ 0	0	(979)	(979)	(75)	(1,054)
Balance (in shares) at Mar. 31, 2024	3,287,647	611,784
Balance at Mar. 31, 2024	$ 33	$ 6	$ 59,206	$ (23,508)	$ 35,737	$ (691)	$ 35,046