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			3		3		3
Net income (loss)				(159)	(159)	(49)	(208)
Balance (in shares) at Jun. 30, 2019	3,263,647	611,784
Balance at Jun. 30, 2019	$ 33	$ 6	59,144	(21,860)	37,323	(35)	37,288
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
Stock options - compensation costs			2		2		2
Net income (loss)				479	479	(34)	445
Balance (in shares) at Jun. 30, 2019	3,263,647	611,784
Balance at Jun. 30, 2019	$ 33	$ 6	59,144	(21,860)	37,323	(35)	37,288
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			3		3		3
Net income (loss)				(1,248)	(1,248)	(29)	(1,277)
Balance (in shares) at Jun. 30, 2020	3,263,647	611,784
Balance at Jun. 30, 2020	$ 33	$ 6	59,150	(23,404)	35,785	(95)	35,690
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
Stock options - compensation costs			2		2		2
Net income (loss)				(435)	(435)	(12)	(447)
Balance (in shares) at Jun. 30, 2020	3,263,647	611,784
Balance at Jun. 30, 2020	$ 33	$ 6	$ 59,150	$ (23,404)	$ 35,785	$ (95)	$ 35,690