Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net income (loss)	$ 9,355us-gaap_NetIncomeLoss	$ 27,731us-gaap_NetIncomeLoss	$ (1,864)us-gaap_NetIncomeLoss
Investment securities available for sale
Increase (decrease) in net unrealized gains	3,374	(7,532)	(18,854)
Plus: reclassification adjustment of net gains included in net income	125	310	10,494
Increase (decrease) in net unrealized gains (losses) on investment securities available for sale	3,499	(7,222)	(8,360)
Defined benefit pension plan
Change in net actuarial loss	(2,740)	1,392	1,292
Other comprehensive income (loss), pretax	759	(5,830)	(7,068)
Provision (benefit) for income taxes related to items of other comprehensive income (loss)	369us-gaap_OtherComprehensiveIncomeLossTax	(2,254)us-gaap_OtherComprehensiveIncomeLossTax	(2,721)us-gaap_OtherComprehensiveIncomeLossTax
Other comprehensive income (loss), net of tax	390	(3,576)	(4,347)
Comprehensive income (loss)	$ 9,745us-gaap_ComprehensiveIncomeNetOfTax	$ 24,155us-gaap_ComprehensiveIncomeNetOfTax	$ (6,211)us-gaap_ComprehensiveIncomeNetOfTax

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount before tax, after reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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