Consolidated Statements of Changes in Shareholders Equity (USD $) In Thousands, except Share data	Total	Common Stock [Member]	Capital surplus [Member]	Retained earnings (accumulated deficit) [Member]	Accumulated other comprehensive loss, net [Member]
Balance at Dec. 31, 2009	$ 75,015	$ 32,282	$ 2,599	$ 47,094	$ (6,960)
Balance, shares at Dec. 31, 2009		6,495,130
Net loss	(60,202)			(60,202)
Other comprehensive income, net of tax	381				381
Par value adjustment, as of August 6, 2010		(32,410)	32,410
Compensation expense related to stock options granted under equity award plans	30		30
Common stock issued related to restricted stock granted under equity award plans, net of forfeitures	297	193	104
Common stock issued related to restricted stock granted under equity award plans, net of forfeitures, shares		15,700
Common stock issued pursuant to Private Placement, net of issuance costs	95,980	400	95,580
Common stock issued pursuant to Private Placement, net of issuance costs, shares		39,975,980
Common stock issued upon conversion of convertible debt	380	1	379
Common stock issued upon conversion of convertible debt, shares		146,145
Common stock issued pursuant to Follow-On Offering	2,018	8	2,010
Common stock issued pursuant to Follow-On Offering, shares		776,123
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	(23,400)			(23,400)
Other comprehensive income, net of tax	4,209				4,209
Compensation expense related to stock options granted under equity award plans	312		312
Common stock issued related to restricted stock granted under equity award plans, net of forfeitures	511	1	510
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, shares		(38,179,834)
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	(1,864)			(1,864)
Other comprehensive income, net of tax	(4,347)				(4,347)
Compensation expense related to stock options granted under equity award plans	499		499
Common stock issued related to restricted stock granted under equity award plans, net of forfeitures	610		610
Common stock issued related to restricted stock granted under equity award plans, net of forfeitures, shares		27,637
Other changes		20
Balance at Dec. 31, 2012	$ 98,380	$ 127	$ 143,342	$ (38,372)	$ (6,717)
Balance, shares at Dec. 31, 2012	12,726,388	12,754,045