CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($)	Additional Paid in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning Balance at Dec. 31, 2016	$ 36,824,022	$ 6,643,476	$ (2,247,415)	$ (607,109)	$ 40,612,974
Net income		4,053,126			4,053,126
Other comprehensive loss				832,782	832,782
Stock option exercises	294,342				294,342
Stock-based comp expense	54,404				54,404
Cash dividends ($0.45 per common share)		(2,138,160)			(2,138,160)
Ending balance at Sep. 30, 2017	37,172,768	8,558,442	(2,247,415)	225,673	43,709,468
Beginning Balance at Dec. 31, 2017	37,236,566	8,471,780	(2,247,415)	(696,296)	42,764,635
Net income		5,116,740			5,116,740
Other comprehensive loss				(1,870,267)	(1,870,267)
Stock option exercises	214,418		(20,849)		193,569
Stock-based comp expense	53,526				53,526
Cash dividends ($0.45 per common share)		(2,958,669)			(2,958,669)
Common stock dividend, 10%	9,334,342	(9,334,342)
Ending balance at Sep. 30, 2018	$ 46,838,852	$ 1,295,509	$ (2,268,264)	$ (2,566,563)	$ 43,299,534