CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income	$ 2,793	$ 2,679	$ 4,973	$ 4,754
Other comprehensive income (loss):
Change in net unrealized holding gains (loss) on available-for-sale securities and I/O strips	(10,544)	3,398	(12,708)	3,769
Deferred income taxes	4,428	(1,427)	5,337	(1,583)
Change in net unamortized unrealized gain on securities available-for-sale that were reclassified to securities held-to-maturity	(14)		(28)
Deferred income taxes	6		12
Reclassification adjustment for (gains) realized in income	(7)	(32)	(38)	(59)
Deferred income taxes	3	13	16	25
Change in unrealized gains (loss) on securities and I/O strips, net of deferred income taxes	(6,128)	1,952	(7,409)	2,152
Change in net pension and other benefit plan liability adjustment	36	41	65	97
Deferred income taxes	(15)	(17)	(27)	(41)
Change in pension and other benefit plan liability, net of deferred income taxes	21	24	38	56
Other comprehensive income (loss)	(6,107)	1,976	(7,371)	2,208
Total comprehensive income (loss)	$ (3,314)	$ 4,655	$ (2,398)	$ 6,962