Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 5,290,240	$ 4,647,119	$ 3,807,492
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on securities available for sale	2,268,403	(830,815)	326,684
Reclassification adjustment for (gain) loss realized in income on securities available for sale	(174,283)	165,369	(186,610)
Unrealized gain (loss) on pension plan benefits	1,375,329	(40,601)	503,167
Federal income tax benefit (expense)	728,584	(148,270)	486,869
Other comprehensive income (loss), net of tax	2,740,865	(557,777)	156,372
Total comprehensive income	$ 8,031,105	$ 4,089,342	$ 3,963,864

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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