Consolidated Statements of Comprehensive Income (unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statements of Comprehensive Income (unaudited) [Abstract]
Net earnings	$ 4,472	$ 3,540	$ 15,446	$ 10,631
Unrealized gains (losses) on securities available-for-sale:
Unrealized holding gains (losses) arising during the year	(405)	(95)	4,116	(10,203)
Less: reclassification adjustment for gains on sales of securities available-for-sale	0	(25)	(128)	(229)
Total other comprehensive income (loss), before tax	(405)	(120)	3,988	(10,432)
Income tax effect related to items of other comprehensive income (loss)	(142)	(42)	1,396	(3,651)
Total other comprehensive income (loss), net of tax	(263)	(78)	2,592	(6,781)
Total comprehensive income	$ 4,209	$ 3,462	$ 18,038	$ 3,850