Consolidated Statements of Income and Comprehensive Income [Parenthetical] - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net unrealized holding gains arising during the period on investment securities available for sale, net of tax expense	$ 1,487	$ 3,630	$ 1,382	$ 5,641
Reclassification adjustment for gains on investment securities included in earnings, net of tax	13	0	13	33
Unrealized gains (losses) on cash flow hedge during the period, net of tax expense (benefit)	$ (58)	$ (104)	$ (35)	$ (435)