Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Net income	$ 222	$ 1,753	$ 2,820	$ 3,360
Unrealized gains (losses) on securities:
Unrealized gains (losses) on securities available for sale arising during the period, net of tax of $3,411 and $557 for the three months ended June 30 and $3,750 and $713 for the six months ended June 30	(5,732)	936	(6,304)	1,205
Unrealized gains (loss) on other-than-temporarily impaired securities available for sale arising during the period, net of tax of $43 and $7 for the three months ended June 30 and $46 and $13 for the six months ended June 30	71	(14)	78	19
Reclassification adjustment for gains on securities available for sale included in net income, net of tax of $514 and $0 for the three months ended June 30 and $520 and $220 for the six months ended June 30	(864)	(1)	(874)	(372)
Reclassification adjustment for credit related other-than-temporary impairment losses on securities available for sale included in net income, net of tax of $760 and $1 for the three months ended June 30 and $760 and $1 for the six months ended June 30	1,278	3	1,278	3
Unrealized gains (losses) net of settlements on cash flow hedge arising during the period, net of tax of $310 and $232 for the three months ended June 30 and $343 and $192 for the six months ended June 30	521	(389)	576	(323)
Defined benefit pension plans:
Amortization of actuarial loss, net of tax of $221 and $199 for the three months ended June 30 and $441 and $398 for the six months ended June 30	370	335	741	670
Other comprehensive income (loss)	(4,356)	870	(4,505)	1,202
Total comprehensive income (loss)	$ (4,134)	$ 2,623	$ (1,685)	$ 4,562