Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (USD $) In Thousands, except Share data	Total	Common stock [Member]	Capital surplus [Member]	Accumulated deficit [Member]	Accumulated other comprehensive loss, net [Member]
Balance at Dec. 31, 2010	$ 113,899	$ 474	$ 133,112	$ (13,108)	$ (6,579)
Balance, shares at Dec. 31, 2010		47,409,078
Net loss	(21,118)			(21,118)
Other comprehensive income, net of tax	4,076				4,076
Compensation expense related to stock options granted under equity award plans	181		181
Common stock issued related to restricted stock granted under equity award plans, net of forfeitures	380	1	379
Common stock issued related to restricted stock granted under equity award plans, net of forfeitures, shares		427,114
Common stock issued pursuant to Follow-On Offering	7,951	31	7,920
Common stock issued pursuant to Follow-On Offering, shares		3,070,030
One-for-four reverse stock split, as of June 28, 2011		(379)	379
One-for-four reverse stock split, as of June 28, 2011		(38,179,823)
Balance at September 30, 2011 at Sep. 30, 2011	105,369	127	141,971	(34,226)	(2,503)
Balance, shares at Sep. 30, 2011		12,726,399
Balance at Dec. 31, 2011	103,482	127	142,233	(36,508)	(2,370)
Balance, shares at Dec. 31, 2011	12,726,388	12,726,388
Net loss	(4,574)			(4,574)
Other comprehensive income, net of tax	(5,873)				(5,873)
Compensation expense related to stock options granted under equity award plans	478		478
Common stock issued related to restricted stock granted under equity award plans, net of forfeitures	374		374
Common stock issued related to restricted stock granted under equity award plans, net of forfeitures, shares		25,283
One-for-four reverse stock split, as of June 28, 2011		19
Balance at September 30, 2011 at Sep. 30, 2012	$ 93,887	$ 127	$ 143,085	$ (41,082)	$ (8,243)
Balance, shares at Sep. 30, 2012	12,751,690	12,751,690