Consolidated Statements of Changes in Shareholders' Equity (USD $) In Thousands, except Share data	Total USD ($)	Preferred Stock SeriesA USD ($)	Preferred Stock SeriesB USD ($)	Preferred Stock SeriesC USD ($)	Common Class A [Member]	Common Class B [Member]	Common Stock [Member] USD ($)	Paid-in Capital [Member] USD ($)	Retained Earnings [Member] USD ($)	Directors' Deferred Compensation Plan [Member] USD ($)	Accumulated Other Comprehensive Income (Loss) [Member] USD ($)
Balance at Dec. 31, 2011	$ 163,387	$ 51,789	$ 0	$ 0			$ 78,279	$ 87,190	$ (47,525)	$ (575)	$ (5,771)
Balance (in shares) at Dec. 31, 2011					15,655,868	0
Net Income (Loss)	(30,018)								(30,018)
Change in accumulated other comprehensive income (loss) net of deferred income taxes	7,766										7,766
Redemption of preferred stock	0
Dividends and accretion on preferred stock	(1,963)	225							(2,188)
Repurchase of stock warrant	0
Common stock distributed	107									107
Stock-based compensation	86							86
Balance at Sep. 30, 2012	139,365	52,014	0	0			78,279	87,276	(79,731)	(468)	1,995
Balance (in shares) at Sep. 30, 2012					15,655,868	0
Balance at Dec. 31, 2012	196,014	52,089	42,246	14,022			78,279	83,259	(75,697)	(468)	2,284
Balance (in shares) at Dec. 31, 2012					15,655,868	0
Net Income (Loss)	19,345								19,345
Change in accumulated other comprehensive income (loss) net of deferred income taxes	(6,036)										(6,036)
Conversion of preferred stock	(117)		(42,246)	(14,022)			139,410	(83,259)
Conversion of preferred stock (in shares)					9,601,262	3,186,748
Redemption of preferred stock	(37,472)	(37,372)							(100)
Dividends and accretion on preferred stock	(1,352)	264							(1,616)
Repurchase of stock warrant	(7,779)						(7,779)
Common stock distributed	0
Stock issuance pursuant to RSUs (in shares)					34,438
Stock issuance pursuant to RSUs	(52)						(52)
Stock-based compensation	295						295
Balance at Sep. 30, 2013	$ 162,846	$ 14,981	$ 0	$ 0			$ 210,153	$ 0	$ (58,068)	$ (468)	$ (3,752)
Balance (in shares) at Sep. 30, 2013					25,291,568	3,186,748