Comprehensive Income - Reclassifications (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Comprehensive Income
Gain on sale of securities	$ 4	$ 271	$ 130	$ 396
Salary and employee benefits	10,203	7,598	30,131	22,327
Income before income taxes	1,912	640	7,932	3,220
Income tax expense	(506)	(103)	(2,518)	(556)
Net Income	1,406	537	5,414	2,664
Amount Reclassified from AOCI
Comprehensive Income
Net Income	(36)	143	(37)	175
Available-for-sale securities, Unrealized holding gains | Amount Reclassified from AOCI
Comprehensive Income
Gain on sale of securities	4	272	130	396
Income before income taxes	4	272	130	396
Income tax expense	(2)	(109)	(52)	(159)
Net Income	2	163	78	237
Defined benefit pension plan items, Change in defined benefit pension plan | Amount Reclassified from AOCI
Comprehensive Income
Salary and employee benefits	(64)	(33)	(192)	(103)
Income before income taxes	(64)	(33)	(192)	(103)
Income tax expense	26	13	77	41
Net Income	$ (38)	$ (20)	$ (115)	$ (62)