Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Interest income:
Loans, including fees	$ 4,160,086	$ 3,933,155
Investment securities - taxable	152,317	154,860
Investment securities - tax exempt	160,607	142,763
Federal funds sold and other interest earning assets	74,526	26,968
Total interest income	4,547,536	4,257,746
Interest expense:
Deposits	775,531	438,410
Securities sold under repurchase agreements	25,299	34,389
Federal Home Loan Bank advances and other borrowings	20,553	62,962
Total interest expense	821,383	535,761
Net interest income	3,726,153	3,721,985
Provision for loan losses	13,000	50,000
Net interest income after provision for loan losses	3,713,153	3,671,985
Noninterest income:
Mortgage banking income	32,719	54,193
Bank owned life insurance income	40,386	39,905
Unrealized gain on equity security	7,845	960
Gain on sale of SBA loans	130,015	60,508
Total noninterest income	392,396	340,280
Noninterest expense:
Salaries	1,326,783	1,283,510
Employee benefits	381,964	367,454
Occupancy	214,420	177,533
Furniture and equipment	155,147	161,616
Other	676,972	639,177
Total noninterest expense	2,755,286	2,629,290
Income before income taxes	1,350,263	1,382,975
Income taxes	253,976	260,857
Net income	$ 1,096,287	$ 1,122,118
Earnings per share - basic and diluted (in dollars per share)	$ 0.65	$ 0.67
Deposit Account [Member]
Noninterest income:
Noninterest revenue	$ 152,060	$ 161,840
Financial Service, Other [Member]
Noninterest income:
Noninterest revenue	$ 29,371	$ 22,874