Consolidated Statement of Changes in Shareholders' Equity - USD ($) $ in Thousands	Preferred Stock Series A [Member]	Additional Paid In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Class A - Common stock	Class B - Common stock	Total
Balance at Dec. 31, 2015	$ 18,856	$ 110,494	$ (104,879)	$ (3,919)	$ (5,249)	$ 394	$ 56,408	$ 193	$ 72,298
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)			4,223			229			4,452
Other comprehensive income, net of reclassifications and taxes				1,989					1,989
Distributions to non controlling interests						(103)			$ (103)
Common stock conversion from Class B to Class A			(4)				4
Common stock conversion from Class B to Class A (in shares)								(2,000)	2,000
Repurchase of preferred stock	(4,000)	(1,800)							$ (5,800)
Treasury shares issued for compensation		(219)			257				38
Stock options exercised		(11)					40		$ 29
Stock options exercised (in shares)									20,000
Stock option expense		44							$ 44
Balance at Jun. 30, 2016	14,856	108,508	(100,660)	(1,930)	(4,992)	520	56,452	$ 193	72,947
Balance at Dec. 31, 2016	0	99,667	(94,512)	(5,219)	(4,965)	625	$ 56,484	$ 193	52,273
Balance (in shares) at Dec. 31, 2016							28,242,055	1,924,629
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	0	0	4,819	0	0	200	$ 0	$ 0	5,019
Other comprehensive income, net of reclassifications and taxes	0	0	0	1,031	0	0	0	0	1,031
Distributions to non controlling interests	0	0	0	0	0	(168)	0	0	(168)
Common stock conversion from Class B to Class A	0	0	(148)	0	0	0	$ 155	(7)	$ 0
Common stock conversion from Class B to Class A (in shares)							78,000		(68,000)
Treasury shares issued for compensation	0	(239)	0	0	336	0	$ 0	0	$ 97
Stock options exercised	0	7	0	0	0	0	$ 35	0	$ 42
Stock options exercised (in shares)							17,000		17,333
Stock option expense	0	32	0	0	0	0	$ 0	0	$ 32
Balance at Jun. 30, 2017	$ 0	$ 99,467	$ (89,841)	$ (4,188)	$ (4,629)	$ 657	$ 56,674	$ 186	$ 58,326
Balance (in shares) at Jun. 30, 2017							28,337,078	1,857,072