Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net earnings	$ 5,099	$ 4,116	$ 6,590	$ 10,974
Unrealized (losses) gains on securities available-for-sale:
Unrealized holding (losses) gains arising during the year	(2,971)	1,574	(1,270)	4,520
Less: reclassification adjustment for gains on sales of securities available-for-sale	(1,128)	(128)	(1,243)	(128)
Total other comprehensive (loss) income, before tax	(4,099)	1,446	(2,513)	4,392
Income tax effect related to items of other comprehensive income (loss)	1,435	(506)	880	(1,537)
Total other comprehensive (loss) income, net of tax	(2,664)	940	(1,633)	2,855
Total comprehensive income	$ 2,435	$ 5,056	$ 4,957	$ 13,829