Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net earnings	$ 2,589	$ 4,472	$ 9,179	$ 15,446
Unrealized gains (losses) on securities available-for-sale:
Unrealized holding gains (losses) arising during the year	1,717	(405)	447	4,116
Less: reclassification adjustment for gains on sales of securities available-for-sale	0	0	(1,243)	(128)
Total other comprehensive income (loss), before tax	1,717	(405)	(796)	3,988
Income tax effect related to items of other comprehensive income (loss)	(601)	142	279	(1,396)
Total other comprehensive income (loss), net of tax	1,116	(263)	(517)	2,592
Total comprehensive income	$ 3,705	$ 4,209	$ 8,662	$ 18,038