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, 2018	3,263,647	611,784
Balance at Dec. 31, 2018	$ 33	$ 6	$ 59,141	$ (21,701)	$ 37,479	$ 14	$ 37,493
Stock options - compensation costs			1		1		1
Net loss				(638)	(638)	(15)	(653)
Balance (in shares) at Mar. 31, 2019	3,263,647	611,784
Balance at Mar. 31, 2019	$ 33	$ 6	59,142	(22,339)	36,842	(1)	36,841
Balance (in shares) at Dec. 31, 2019	3,263,647	611,784
Balance at Dec. 31, 2019	$ 33	$ 6	59,147	(22,156)	37,030	(66)	36,964
Stock options - compensation costs			1		1		1
Net loss				(813)	(813)	(17)	(830)
Balance (in shares) at Mar. 31, 2020	3,263,647	611,784
Balance at Mar. 31, 2020	$ 33	$ 6	$ 59,148	$ (22,969)	$ 36,218	$ (83)	$ 36,135