Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Consolidated Statements of Comprehensive Income
Net income	$ 15,684	$ 15,385	$ 10,136
Unrealized holding (losses) gains on available-for-sale securities arising during the period	(1,155)	(8,624)	(394)
Related tax benefit (expense)	445	3,382	165
Holding (losses) gains after tax on available-for-sale securities	(710)	(5,242)	(229)
Less: Reclassification adjustment for the net (losses) gains realized during the period
Net realized (losses) gains	(2,213)	(178)	1,719
Income tax benefit (expense) on net realized gains	882	71	(704)
Net realized (losses) gains after tax	(1,331)	(107)	1,015
Other comprehensive (loss) income on available-for-sale securities	621	(5,135)	(1,244)
Accretion of net unrealized holding gains on held-to-maturity transferred from available-for-sale securities	5,939	964	968
Related tax expense	(2,446)	(396)	(399)
Other comprehensive income on held-to-maturity securities	3,493	568	569
Changes in fair value of derivatives used for cashflow hedges	(363)	(631)
Related tax benefit	146	252
Other comprehensive loss on cashflow hedges	(217)	(379)
Total other comprehensive income (loss) income	3,897	(4,946)	(675)
Total comprehensive income	$ 19,581	$ 10,439	$ 9,461