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, 2017	$ 37,236,566	$ 8,847,164	$ (2,247,415)	$ (1,071,680)	$ 42,764,635
Net income		1,612,230			1,612,230
Other comprehensive loss				(1,047,998)	(1,047,998)
Exercise of stock options	18,768				18,768
Stock-based compensation expense	18,882				18,882
Cash dividends		(749,668)			(749,668)
Common stock dividend, 10%	9,334,342	(9,334,342)
Ending balance at Mar. 31, 2018	46,608,558	375,384	(2,247,415)	(2,119,678)	42,616,849
Beginning Balance at Dec. 31, 2018	46,857,734	2,650,296	(2,268,264)	(1,777,205)	45,462,561
Net income		1,689,264			1,689,264
Other comprehensive loss				991,936	991,936
Exercise of stock options	51,265				51,265
Stock-based compensation expense	18,881				18,881
Cash dividends		(882,676)			(882,676)
Ending balance at Mar. 31, 2019	$ 46,927,880	$ 3,456,884	$ (2,268,264)	$ (785,269)	$ 47,331,231