CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Common Stock [Member]	Warrant [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balances, at Dec. 31, 2009	$ 84	$ 1,543	$ 29,872	$ 96,151	$ 160	$ 127,810
Comprehensive loss:
Net loss	0	0	0	(1,667)	0	(1,667)
Unrealized gains on available-for-sale securities, net of reclassification adjustment, net of taxes	0	0	0	0	242	242
Unrealized gains (losses) on cash flow hedging activities, net of reclassification adjustment, net of taxes	0	0	0	0	(2,216)	(2,216)
Total comprehensive loss						(3,641)
Stock-based compensation	0	0	370	0	0	370
Cash dividends paid	0	0	0	(2,026)	0	(2,026)
Balances, at Dec. 31, 2010	84	1,543	30,242	92,458	(1,814)	122,513
Comprehensive loss:
Net loss	0	0	0	(897)	0	(897)
Unrealized gains on available-for-sale securities, net of reclassification adjustment, net of taxes	0	0	0	0	400	400
Unrealized gains (losses) on cash flow hedging activities, net of reclassification adjustment, net of taxes	0	0	0	0	(275)	(275)
Total comprehensive loss						(772)
Repurchase of warrant	0	(1,543)	1,518	0	0	(25)
Shares issued for employee stock-based awards	1	0	(1)	0	0	0
Stock-based compensation	0	0	293	0	0	293
Cash dividends paid	0	0	0	(760)	0	(760)
Balances, at Dec. 31, 2011	85	0	32,052	90,801	(1,689)	121,249
Comprehensive loss:
Net loss	0	0	0	(9,638)	0	(9,638)
Unrealized gains on available-for-sale securities, net of reclassification adjustment, net of taxes	0	0	0	0	524	524
Unrealized gains (losses) on cash flow hedging activities, net of reclassification adjustment, net of taxes	0	0	0	0	1,873	1,873
Total comprehensive loss						(7,241)
Stock-based compensation	0	0	103	0	0	103
Cash dividends paid	0	0	0	(85)	0	(85)
Balances, at Dec. 31, 2012	$ 85	$ 0	$ 32,155	$ 81,078	$ 708	$ 114,026