Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - 6 months ended Jun. 30, 2017 - USD ($) shares in Thousands, $ 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, 2016	3,191	612
Balance at Dec. 31, 2016	$ 32	$ 6	$ 58,953	$ (20,250)	$ 38,741	$ 2,635	$ 41,376
Stock options - compensation costs			7		7		7
Net loss				(805)	(805)	(205)	(1,010)
Balance (in shares) at Jun. 30, 2017	3,191	612
Balance at Jun. 30, 2017	$ 32	$ 6	$ 58,960	$ (21,055)	$ 37,943	$ 2,430	$ 40,373