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, 2015	$ 36,341,744	$ 4,064,834	$ (2,247,415)	$ 992,549	$ 39,151,712
Net income		1,195,736			1,195,736
Other comprehensive loss				591,294	591,294
Exercise of stock options	12,462				12,462
Stock-based compensation expense	18,582				18,582
Cash dividends		(639,276)			(639,276)
Ending balance at Mar. 31, 2016	36,372,788	4,621,294	(2,247,415)	1,583,843	40,330,510
Beginning Balance at Dec. 31, 2016	36,824,022	6,643,476	(2,247,415)	(607,109)	40,612,974
Net income		1,226,088			1,226,088
Other comprehensive loss				369,068	369,068
Exercise of stock options	113,190				113,190
Stock-based compensation expense	18,835				18,835
Cash dividends		(695,016)			(695,016)
Ending balance at Mar. 31, 2017	$ 36,956,047	$ 7,174,548	$ (2,247,415)	$ (238,041)	$ 41,645,139