Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Interest and dividend income:
Interest and fees on loans	$ 11,540,665	$ 10,229,270
Securities:
Residential mortgage-backed and related securities	295,450	281,418
State and municipal securities	399,547	408,467
Dividends on non-marketable equity securities	25,786	24,535
Interest-bearing deposits	255,664	155,322
Total interest and dividend income	12,517,112	11,099,012
Interest expense:
Deposits	2,822,675	1,762,113
Borrowings	277,051	218,512
Total interest expense	3,099,726	1,980,625
Net interest income	9,417,386	9,118,387
Provision for loan losses	595,000	527,500
Net interest income after provision for loan losses	8,822,386	8,590,887
Other income:
Gain on sale of loans, net	759,015	584,929
Gain on sale of foreclosed real estate	16,128	116,295
Loan origination and servicing income	949,439	858,087
Origination of mortgage servicing rights, net of amortization	87,895	22,128
Increase in cash surrender value of life insurance	48,077	47,653
Total other income	2,470,633	2,282,827
Other expenses:
Salaries and employee benefits	4,729,967	4,295,121
Directors fees	172,000	180,750
Occupancy	683,060	637,872
Deposit insurance premium	33,565	66,010
Legal and professional services	326,100	388,199
Data processing	682,547	664,601
Loan expense	718,198	725,125
Valuation adjustments and expenses on foreclosed real estate	34,714	26,102
Other	1,250,018	1,216,412
Total other expenses	8,630,169	8,200,192
Income before income tax expense	2,662,850	2,673,522
Income tax expense	725,503	679,216
Net income	$ 1,937,347	$ 1,994,306
Basic earnings per share (in dollars per share)	$ 0.62	$ 0.62
Diluted earnings per share (in dollars per share)	0.62	0.62
Dividends per share (in dollars per share)	$ 0.629	$ 0.265
Bank Servicing [Member]
Other income:
Revenue from contract with customer	$ 472,973	$ 527,739
Revenue from contract with customer	472,973	527,739
Repossessed Assets [Member]
Other income:
Revenue from contract with customer	18,502	4,917
Revenue from contract with customer	18,502	4,917
Product and Service, Other [Member]
Other income:
Revenue from contract with customer	118,604	119,977
Revenue from contract with customer	$ 118,604	$ 119,977