Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($)	Total	Common Stock	Nonvested restricted stock [Member]	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Income	Retained Earnings
Balance at at Dec. 31, 2016	$ 71,112,274	$ 31,464	$ (25,358)	$ 12,036,744	$ (4,330,712)	$ 1,180,086	$ 62,220,050
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	5,009,467						5,009,467
Other Comprehensive Income, Net Of Tax:	2,559,702					2,559,702
Proceeds from Stock Options Exercised	0
Cash Dividends on Common Stock	(795,277)						(795,277)
Balance at at Sep. 30, 2017	77,911,524	31,464		12,036,744	(4,330,712)	3,739,788	66,434,240
Nonvested Restricted Stock	0
Balance at at Dec. 31, 2017	77,923,454	31,539		12,212,844	(4,330,712)	2,932,122	67,077,661
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	5,657,763						5,657,763
Other Comprehensive Income, Net Of Tax:	(5,907,428)					(5,907,428)
Proceeds from Stock Options Exercised	10,310
Cash Dividends on Common Stock	(797,686)						(797,686)
Balance at at Sep. 30, 2018	$ 76,886,413	$ 31,544		$ 12,223,149	$ (4,330,712)	$ (2,364,215)	$ 71,326,647