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, 2017	3,191,100	612,231
Balance at Dec. 31, 2017	$ 32	$ 6	$ 58,965	$ (20,557)	$ 38,446	$ 2,126	$ 40,572
Stock options - compensation costs			3		3		3
Net income (loss)				(176)	(176)	(244)	(420)
Balance (in shares) at Jun. 30, 2018	3,191,100	612,231
Balance at Jun. 30, 2018	$ 32	$ 6	58,968	(20,733)	38,273	1,882	40,155
Balance (in shares) at Mar. 31, 2018	3,191,100	612,231
Balance at Mar. 31, 2018	$ 32	$ 6	58,967	(21,356)	37,649	2,011	39,660
Stock options - compensation costs			1		1		1
Net income (loss)				623	623	(129)	494
Balance (in shares) at Jun. 30, 2018	3,191,100	612,231
Balance at Jun. 30, 2018	$ 32	$ 6	58,968	(20,733)	38,273	1,882	40,155
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