Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Other Comprehensive Income Details 1
Net unrealized gain on securities available-for-sale, before tax	$ 25	$ (1,512)	$ 2,080	$ 6,850
Less: Reclassification adjustment for net gains included in net income, before tax	(11)	1	(542)	(1,123)
Total unrealized gain, before tax	14	(1,511)	1,538	5,727
Net unrealized gain (loss) on derivatives, before tax	557	2,927	2,186	(9,132)
Less: Reclassification adjustment for gains/losses included in net income, before tax	(289)	(777)	(1,308)	1,519
Total unrealized gain (loss) on derivatives, before tax	268	2,150	878	(7,613)
Other Comprehensive Income (Loss), before tax	282	639	2,416	(1,886)
Net unrealized gain on securities available-for-sale, tax effect	10	(605)	837	2,740
Less: Reclassification adjustment for net gains included in net income, tax	(4)		(202)	(449)
Total unrealized gain, tax effect	6	(605)	635	2,291
Net unrealized gain (loss) on derivatives, tax effect	210	1,171	836	(3,654)
Less: Reclassification adjustment for gains/losses included in net income, tax effect	(106)	(311)	(487)	608
Total unrealized gain (loss) on derivatives, tax effect	104	860	349	(3,046)
Other Comprehensive Income (Loss), tax effect	110	255	984	(755)
Net unrealized gain on securities available-for-sale, net of tax	15	(907)	1,243	4,110
Less: Reclassification adjustment for net gains included in net income, net of tax	(7)	1	(340)	(674)
Total unrealized gain (loss) on investment securities	8	(906)	903	3,436
Net unrealized gain (loss) on derivatives, net of tax	347	1,756	1,350	(5,478)
Less: Reclassification adjustment for gains/losses included in net income, net of tax	(183)	(466)	(821)	911
Total unrealized gain (loss) on derivatives	164	1,290	529	(4,567)
Other comprehensive income (loss)	$ 172	$ 384	$ 1,432	$ (1,131)