CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 2,022	$ 1,963	$ 1,738	$ 1,608	$ 1,528	$ 1,283	$ 1,711	$ 1,821	$ 7,208	$ 7,331	$ 6,343
Net unrealized holding (losses) gains arising during period, net of tax (benefit) expense of $(41), $(433) and $85, respectively									(62)	(662)	131
Reclasssification adjustment for losses included in net income, net of tax benefit of $3, $7 and $2, respectively									(5)	(15)	(4)
Comprehensive income									$ 7,141	$ 6,654	$ 6,470