Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net earnings	$ 2,491	$ 2,349
Unrealized gains on securities available-for-sale:
Unrealized holding gains arising during the year	820	2,802
Less: reclassification adjustment for gains on sales of securities available-for-sale	(6)	0
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax	814	2,802
Fair value of derivative instruments designated as cash flow hedges:
Change in fair value of derivative instruments designated as cash flow hedges	13	0
Total other comprehensive income, before tax	827	2,802
Income tax effect related to items of other comprehensive income	(290)	(980)
Total other comprehensive income, net of tax	537	1,822
Total comprehensive income	$ 3,028	$ 4,171