Accumulated Other Comprehensive Income, Reclassification of AOCI (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gain on sale of securities	$ (4)	$ 587
Less provision for income taxes	364	517
Unrealized Gains and Losses on Available-for-Sale Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized gain on sale of securities	(4)	587
Less provision for income taxes	(1)	200
Reclassification adjustment, net of taxes	$ (3)	$ 387