Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
Net income	$ 15,461	$ 14,722	$ 14,025
Other Comprehensive Income [Abstract]
Unrealized gains (losses) on available-for-sale securities, net of taxes of $(5,590), $7,362 and $(1,256), for the years ended December 31, 2014, 2013 and 2012, respectively	8,751	(11,525)	1,966
Unamortized holding losses on held to maturity securities transferred from available for sale, net of taxes of $518 for December 31, 2014 and $0 for December 31, 2013 and 2012.	(810)	0	0
Less: reclassification adjustment for realized gains included in net income net of taxes of $279, $894, $364, for the years ended December 31, 2014, 2013 and 2012, respectively	(436)	(1,399)	(570)
Other comprehensive income (loss), net of taxes	7,505	(12,924)	1,396
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 22,966	$ 1,798	$ 15,421