Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 4,205	$ 5,262
Other comprehensive income:
Unrealized gain on securities (net of tax expense of $71 and $96 in 2016 and 2015, respectively)	102	139
Accretion of unrealized loss on securities reclassified to held-to-maturity (net of tax expense of $149 and $125 in 2016 and 2015, respectively)	216	182
Total comprehensive income	$ 4,523	$ 5,583