Consolidated Statement of Changes in Shareholders' Equity - USD ($) $ in Thousands	Preferred Stock Series A [Member]	Common Stock [Member] Class A - Common stock	Common Stock [Member] Class B - Common stock	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, 2014	$ 18,856	$ 56,400	$ 193	$ 110,697	$ (115,864)	$ (2,492)	$ (5,571)	$ 387			$ 62,606
Balance (in shares) at Dec. 31, 2014		28,200,000	1,932,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)					10,993			531			11,524
Other comprehensive income, net of reclassifications and taxes						(1,427)					(1,427)
Distributions to non controlling interests								(524)			(524)
Common stock conversion from Class B to Class A		$ 8			(8)
Common stock conversion from Class B to Class A (in shares)		4,000	(4,000)
Treasury shares issued for compensation				(281)			322				41
Stock option expense				78							78
Balance at Dec. 31, 2015	18,856	$ 56,408	$ 193	110,494	(104,879)	(3,919)	(5,249)	394			72,298
Balance (in shares) at Dec. 31, 2015		28,204,000	1,928,000						27,828,849	1,928,289
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)					10,375			590			10,965
Other comprehensive income, net of reclassifications and taxes						(1,300)					(1,300)
Distributions to non controlling interests								(359)			(359)
Common stock conversion from Class B to Class A		$ 8			(8)
Common stock conversion from Class B to Class A (in shares)		4,000	(3,000)
Repurchase of preferred stock	$ (18,856)			(10,653)							29,509
Treasury shares issued for compensation				(243)			284				41
Stock options exercised		$ 68		(16)							$ 52
Stock options exercised (in shares)		34,000									33,666
Stock option expense				85							$ 85
Balance at Dec. 31, 2016		$ 56,484	$ 193	$ 99,667	$ (94,512)	$ (5,219)	$ (4,965)	$ 625			$ 52,273
Balance (in shares) at Dec. 31, 2016		28,242,000	1,925,000						27,887,024	1,924,629