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, 2015	3,957,135
Balance, Beg at Dec. 31, 2015	$ 79,949	$ 39	$ 3,766	$ 80,845	$ 1,937	$ (6,638)
Net earnings	6,073	0	0	6,073	0	0
Other Comprehensive Income (Loss), Net Of Tax	1,491	0	0	0	1,491	0
Cash dividends paid	(2,459)	0	0	(2,459)	0	0
Treasury Stock, acquired	0	0	0	0	0	0
Sale of treasury stock	1	0	1	0	0	0
Balance, End at Sep. 30, 2016	$ 85,055	39	3,767	84,459	3,428	(6,638)
Balance, shares at Sep. 30, 2016	3,957,135
Balance, shares at Dec. 31, 2016	3,957,135
Balance, Beg at Dec. 31, 2016	$ 82,177	39	3,767	85,716	(708)	(6,637)
Net earnings	6,021	0	0	6,021	0	0
Other Comprehensive Income (Loss), Net Of Tax	850	0	0	0	850	0
Cash dividends paid	(2,514)	0	0	(2,514)	0	0
Treasury Stock, acquired	0	0	0	0	0	0
Sale of treasury stock	4	0	4	0	0	0
Balance, End at Sep. 30, 2017	$ 86,538	$ 39	$ 3,771	$ 89,223	$ 142	$ (6,637)
Balance, shares at Sep. 30, 2017	3,957,135