Change in Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Changes to accumulated other comprehensive income by components
Balance at beginning of period	$ (23)	$ 6,811
Other comprehensive income (loss) before reclassification	3,116	(626)
Reclassifications from other comprehensive income		0
Tax effect of current period changes	(1,303)	208
Current period changes net of taxes	1,813	(418)
Balance at end of period	1,790	6,393
Unrealized Gain and Losses on AFS Securities
Changes to accumulated other comprehensive income by components
Balance at beginning of period	192	6,842
Other comprehensive income (loss) before reclassification	3,122	(513)
Tax effect of current period changes	(1,311)	217
Current period changes net of taxes	1,811	(296)
Balance at end of period	2,003	6,546
Unrealized Gain on Interest Only Strips
Changes to accumulated other comprehensive income by components
Balance at beginning of period	330	320
Other comprehensive income (loss) before reclassification	(19)	21
Tax effect of current period changes	8	(9)
Current period changes net of taxes	(11)	12
Balance at end of period	319	332
BOLI Unrecognized Prior Service Costs
Changes to accumulated other comprehensive income by components
Balance at beginning of period	545	(351)
Other comprehensive income (loss) before reclassification	13	(134)
Current period changes net of taxes	13	(134)
Balance at end of period	$ (532)	$ (485)