Condensed Consolidated Statements of Shareholders' Equity (USD $) In Thousands, unless otherwise specified	Total	Additional Paid-In Capital	(Accumulated Deficit) Retained Earnings	Common Stock Par Value	Common Stock Par Value Common Stock	Class B Stock Par Value	Class B Stock Par Value Common Stock
Balance at Dec. 31, 2011	$ 281,603	$ 280,923	$ 453		$ 170		$ 57
Increase (Decrease) in Shareholders' Equity
Net loss	(4,456)		(4,456)	(3,312)		(1,144)
Cash dividends paid ($0.01 and $0.13 per share for three months ended March 31, 2013 and 2012, respectively)	(2,951)	(2,951)
Nonvested stock amortization	572	572
Balance at Mar. 31, 2012	274,768	278,544	(4,003)		170		57
Balance at Dec. 31, 2012	260,662	277,249	(16,817)		173		57
Increase (Decrease) in Shareholders' Equity
Net loss	(5,083)		(5,083)	(3,787)		(1,296)
Cash dividends paid ($0.01 and $0.13 per share for three months ended March 31, 2013 and 2012, respectively)	(230)	(230)
Nonvested stock amortization	464	464
Balance at Mar. 31, 2013	$ 255,813	$ 277,483	$ (21,900)		$ 173		$ 57