Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Net income $ 19,948 $ 16,606 $ 12,889
Securities available for sale and transferred securities:      
Change in net unrealized gains (losses) during the period (2,971) (1,150) 10,464
Change in net unrealized loss on securities transferred to held to maturity 421 356 (2,055)
Reclassification adjustment for net gains recognized in net income 87 (54) (180)
Total securities available for sale and transferred securities (2,463) (848) 8,229
Derivatives:      
Change in the accumulated loss on effective cash flow hedge derivatives 2,894 (1,788) (3,381)
Reclassification adjustment for interest payments 713 414 422
Total derivatives 1,876 (1,374) (3,381)
Other comprehensive income (loss), before tax (587) (2,222) 5,270
Deferred tax (benefit) expense related to other comprehensive income (168) (834) 1,943
Other comprehensive (loss) income, net of tax (419) (1,388) 3,327
Total comprehensive income 19,529 15,218 16,216
Terminated [Member]      
Derivatives:      
Change in the accumulated loss on effective cash flow hedge derivatives $ (1,731) $ 0 $ 0