Condensed Consolidated Statements of Shareholders' Equity (Unaudited) (USD $) In Thousands, unless otherwise specified	Additional Paid-In Capital [Member]	(Accumulated Deficit) Retained Earnings [Member]	Total	Common Stock Par Value [Member] Common Stock [Member]	Common Stock Par Value [Member] Additional Paid-In Capital [Member]	Common Stock Par Value [Member]	Class B Stock Par Value [Member] Common Stock [Member]	Class B Stock Par Value [Member] Additional Paid-In Capital [Member]	Class B Stock Par Value [Member]
Balance at Dec. 31, 2011	$ 280,923	$ 453	$ 281,603	$ 170			$ 57
Increase (Decrease) in Shareholders' Equity
Net loss		(12,942)	(12,942)
Cash dividends paid	(5,221)		(5,221)
Issuance of nonvested common stock	0		0	0
Nonvested stock amortization	1,377		1,377
Balance at Sep. 30, 2012	277,079	(12,489)	264,817	170			57
Balance at Dec. 31, 2012	277,249	(16,817)	260,662	173			57
Increase (Decrease) in Shareholders' Equity
Net loss		(11,979)	(11,979)
Cash dividends paid	(756)		(756)
Issuance of stock				202	80,839	81,041	4	(4)	0
Issuance of nonvested common stock	(1)		0	1
Nonvested stock amortization	1,156		1,156
Balance at Sep. 30, 2013	$ 358,483	$ (28,796)	$ 330,124	$ 376			$ 61