Accumulated Other Comprehensive Income - Reclassifications Out of AOCI (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]        
Securities gains, net $ 73 $ 6 $ 661 $ 553
Income taxes (1,654) (1,691) (5,172) (4,081)
Net Income 3,963 4,037 12,179 10,432
Realized gain on sale of securities [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member]        
Reclassification Adjustment Out Of Accumulated Other Comprehensive Income [Line Items]        
Securities gains, net 73 6 661 553
Income taxes (25) (3) (231) (194)
Net Income $ 48 $ 3 $ 430 $ 359