Comprehensive Income - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Comprehensive Income
Gain on sale of securities	$ 5	$ 125	$ 126	$ 125
Salary and employee benefits	10,194	7,932	19,928	14,729
Income before income taxes	2,688	1,184	6,020	2,580
Income tax expense	(783)	(215)	(2,012)	(453)
Net Income	1,905	969	4,008	2,127
Amount Reclassified from AOCI
Comprehensive Income
Net Income	(36)	54	(2)	32
Available-for-sale securities, Unrealized holding gains | Amount Reclassified from AOCI
Comprehensive Income
Gain on sale of securities	5	125	126	125
Income before income taxes	5	125	126	125
Income tax expense	(2)	(50)	(50)	(50)
Net Income	3	75	76	75
Defined benefit pension plan items, Change in defined benefit pension plan | Amount Reclassified from AOCI
Comprehensive Income
Salary and employee benefits	(64)	(35)	(128)	(70)
Income before income taxes	(64)	(35)	(128)	(70)
Income tax expense	25	14	50	27
Net Income	$ (39)	$ (21)	$ (78)	$ (43)