Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock Member	Additional Paid In Capital Member	Retained Earnings Member	Accumulated Other Comprehensive Income Member	Treasury Stock Member
Balance, shares at Dec. 31, 2018	3,643,868
Balance, Beg at Dec. 31, 2018	$ 89,055	$ 39	$ 3,779	$ 95,635	$ (3,763)	$ (6,635)
Net earnings	9,741	0	0	9,741	0	0
Other comprehensive (loss)	5,822	0	0	0	5,822	0
Cash dividends paid	(3,575)	0	0	(3,575)	0	0
Treasury Stock, acquired	2,721	$ 0	0	0	0	(2,721)
Treasury Stock, acquired shares		(77,907)
Sale of treasury stock	6	$ 0	5	0	0	1
Sale of treasury stock shares		185
Balance, End at Dec. 31, 2019	$ 98,328	$ 39	3,784	101,801	2,059	(9,355)
Balance, shares at Dec. 31, 2019	3,566,146
Net earnings	$ 7,454	0	0	7,454	0	0
Other comprehensive (loss)	5,540	0	0	0	5,540	0
Cash dividends paid	(3,638)	0	0	(3,638)	0	0
Sale of treasury stock	6	$ 0	5	0	0	1
Sale of treasury stock shares		130
Balance, End at Dec. 31, 2020	$ 107,690	$ 39	$ 3,789	$ 105,617	$ 7,599	$ (9,354)
Balance, shares at Dec. 31, 2020	3,566,276