Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($)	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Accumulated Other Comprehensive Income	Retained Earnings
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	1,730,117					1,730,117
Other Comprehensive Income, Net Of Tax:	(3,095,804)				(3,095,804)
Reclass from AOCI to Retained Earnings for stranded tax effect					611,091	(611,091)
Cash Dividends on Common Stock	(265,889)					(265,889)
Proceeds from Stock Options Exercised	8,019
Balance at at Mar. 31, 2018	76,299,897	31,543	12,220,859	(4,330,712)	447,409	67,930,798
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Value, Stock Options Exercised		4
Adjustments to Additional Paid in Capital, Share-based Compensation, Stock Options, Requisite Service Period Recognition			8,015
Balance at at Dec. 31, 2018	80,518,433	31,548	12,235,341	(4,330,712)	(27,909)	72,610,165
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	2,088,873					2,088,873
Other Comprehensive Income, Net Of Tax:	2,817,917				2,817,917
Stock Issued During Period, Value, Employee Stock Purchase Plan	12,009	5
Adjustments to Additional Paid in Capital, Share-based Compensation, Employee Stock Purchase Program, Requisite Service Period Recognition			12,004
Reclass from AOCI to Retained Earnings for stranded tax effect					0	0
Stock Issued During Period, Value, Stock Options Exercised		10
Adjustments to Additional Paid in Capital, Share-based Compensation, Stock Options, Requisite Service Period Recognition			19,990
Cash Dividends on Common Stock	(265,982)					(265,982)
Proceeds from Stock Options Exercised	20,000
Balance at at Mar. 31, 2019	$ 85,191,250	$ 31,563	$ 12,267,335	$ (4,330,712)	$ 2,790,008	$ 74,433,056