CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities:
Net income	$ 6,460,631	$ 7,318,433	$ 6,922,934
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	421,040	230,377	195,921
Gain on sale of investment securities	(10,002)	(50,707)	(4,735)
Loss on sale of other real estate owned			33,476
Loss on disposal of premises, equipment, and leasehold improvements, net			428
Valuation and other adjustments to other real estate owned			23,637
Provision for loan losses	240,000	180,000	325,000
Stock-based compensation expense	92,986	78,053	72,408
Deferred income taxes	(422,345)	432,844	(217,637)
Net amortization of unearned discounts on investment securities available for sale	362,159	247,624	303,530
Origination of mortgage loans to be sold	(181,781,058)	(67,783,219)	(55,504,124)
Proceeds from sale of mortgage loans to be sold	173,877,723	63,920,259	56,398,409
(Increase) decrease in accrued interest receivable and other assets	(38,312)	(221,400)	472,740
Increase in accrued interest payable and other liabilities	1,089,165	91,204	295,071
Net cash provided by operating activities	291,987	4,443,468	9,317,058
Cash flows from investing activities:
Proceeds from calls and maturities of investment securities available for sale	23,491,000	9,356,835	6,932,927
Proceeds from sale of investment securities available for sale	11,550,000	30,412,250	21,434,634
Purchase of investment securities available for sale	(68,260,421)	(17,886,300)	(9,978,050)
Proceeds from sale of other real estate owned			378,366
Net decrease (increase) in loans	(46,788,177)	201,134	(4,469,694)
Purchase of premises, equipment, and leasehold improvements, net	(184,138)	(2,185,605)	(287,031)
Net cash (used in) provided by investing activities	(80,191,736)	19,898,314	14,011,152
Cash flows from financing activities:
Net increase (decrease) in deposit accounts	83,005,976	(3,186,733)	(20,509,912)
Dividends paid	(3,592,841)	(4,031,157)	(3,699,845)
Repurchase of common shares	(398,868)
Stock options exercised	117,044	138,286	193,569
Net cash provided by (used in) financing activities	79,131,311	(7,079,604)	(24,016,188)
Net (decrease) increase in cash and cash equivalents	(768,438)	17,262,178	(687,978)
Cash and cash equivalents at the beginning of the period	49,094,419	31,832,241	32,520,219
Cash and cash equivalents at the end of the period	48,325,981	49,094,419	31,832,241
Cash paid during the period for:
Interest	323,455	940,299	626,700
Income taxes	814,052	1,761,574	1,169,085
Supplemental disclosures for non-cash investing and financing activity:
Change in unrealized gain on securities available for sale, net of income taxes	1,187,052	2,260,019	(705,525)
Change in dividends payable	53,680	58,163	$ 85,615
Right of use assets obtained in exchange for lease obligation		13,519,027
Change in right of use assets and lease liabilities	$ 479,066	$ 309,810