CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Less: KSOP-Owned Shares
Beginning balance at Dec. 31, 2016	$ 110,253	$ 0	$ 9,616	$ 101,736	$ 57,160	$ (20,111)	$ (6,487)	$ (31,661)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	7,492				7,492
Other comprehensive income (loss)	1,759						1,759
Terminated KSOP put option	34,300							34,300
Exercise of stock options	84		5	55		24
Sale of common stock	55,755		2,300	53,455
Stock based compensation	123			123
Net change in fair value of KSOP shares	(2,639)							(2,639)
Dividends: Common - $.14 per share in 2018	(2,576)				(2,576)
Ending balance at Jun. 30, 2017	204,551	0	11,921	155,369	62,076	(20,087)	(4,728)	0
Beginning balance at Dec. 31, 2017	207,345	0	11,921	155,601	66,037	(20,087)	(6,127)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	8,993				8,993
Other comprehensive income (loss)	(3,306)						(3,306)
Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income	0				486		(486)
Exercise of stock options	46		2	44		0
Issuance of common stock	29,568		900	28,668
Stock based compensation	235			235
Net change in fair value of KSOP shares	0
Dividends: Common - $.14 per share in 2018	(3,223)				(3,223)
Ending balance at Jun. 30, 2018	$ 239,658	$ 0	$ 12,823	$ 184,548	$ 72,293	$ (20,087)	$ (9,919)	$ 0