Consolidated Statement of Changes in Shareholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2017	$ 4,293,835	$ 31,701,533	$ 33,020,030	$ (1,629,619)	$ (26,242,793)	$ 41,142,986
Net Income			1,232,366			1,232,366
Comprehensive income (loss):
Changes in net gain on securities available for sale				(769,356)		(769,356)
Cash dividend declared $11 and $12 per share			(280,035)			(280,035)
Retirement of treasury stock	(1,748,059)	(12,994,133)	(11,500,601)		26,242,793
Balance at Mar. 31, 2018	2,545,776	18,707,400	22,471,760	(2,398,975)	0	41,325,961
Balance at Dec. 31, 2018	2,545,776	18,418,995	24,841,569	(2,187,396)	0	43,618,944
Net Income			1,228,706			1,228,706
Comprehensive income (loss):
Changes in net gain on securities available for sale				717,770		717,770
Cash dividend declared $11 and $12 per share			(305,495)			(305,495)
Balance at Mar. 31, 2019	$ 2,545,776	$ 18,418,995	$ 25,764,780	$ (1,469,626)	$ 0	$ 45,259,925