Consolidated Statement of Changes in Shareholders' Equity (unaudited) (USD $) In Thousands, unless otherwise specified	Preferred Stock Series A [Member]	Common Class A [Member]	Common Class B [Member]	Additional Paid In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2010	$ 28,395	$ 22,711	$ 209	$ 126,152	$ (91,746)	$ 1,942	$ (6,971)	$ 3,401	$ 84,093
Balance (in shares) at Dec. 31, 2010		11,355	2,087
Components of comprehensive income [Abstract]
Net loss					(5,736)			708	(5,028)
Other comprehensive income, net of reclassifications and taxes						33			33
Common stock conversion from Class B to Class A		12	(1)		(11)				0
Common stock conversion from Class B to Class A (in shares)		6	(5)
Accretion of discount on preferred stock	238				(238)				0
Stock option expense				46					46
Balance at Jun. 30, 2011	28,633	22,723	208	126,198	(97,731)	1,975	(6,971)	4,109	79,144
Balance (in shares) at Jun. 30, 2011		11,361	2,082
Balance at Dec. 31, 2011	28,878	22,723	208	126,245	(100,803)	800	(6,971)	4,865	75,945
Balance (in shares) at Dec. 31, 2011		11,362	2,081
Components of comprehensive income [Abstract]
Net loss					(2,819)			(934)	(3,753)
Other comprehensive income, net of reclassifications and taxes						340			340
Common stock conversion from Class B to Class A		17	(1)		(16)				0
Common stock conversion from Class B to Class A (in shares)		8	(7)
Accretion of discount on preferred stock	254				(254)				0
Stock option expense				28					28
Balance at Jun. 30, 2012	$ 29,132	$ 22,740	$ 207	$ 126,273	$ (103,892)	$ 1,140	$ (6,971)	$ 3,931	$ 72,560
Balance (in shares) at Jun. 30, 2012		11,370	2,074