Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 4,647,119	$ 3,807,492	$ 4,033,977
Other comprehensive income (loss), net of tax:
Unrealized gain (loss) on securities available for sale	(830,815)	326,684	(704,188)
Reclassification adjustment for (gain) loss realized in income on securities available for sale	165,369	(186,610)	(144,034)
Unrealized gain (loss) on pension plan benefits	(40,601)	503,167	(110,306)
Federal income tax (benefit) expense	(148,270)	486,869	(325,900)
Other comprehensive income (loss), net of tax	(557,777)	156,372	(632,628)
Total comprehensive income	$ 4,089,342	$ 3,963,864	$ 3,401,349

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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