Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities
Interest received	$ 17,714,259	$ 16,646,808
Fees and commissions received	1,044,262	1,093,256
Interest paid	(2,376,372)	(1,668,523)
Proceeds from sale of mortgage loans held for sale	13,093,197	13,063,992
Origination of mortgage loans held for sale	(13,339,135)	(12,507,192)
Cash paid to suppliers and employees	(9,372,508)	(7,773,163)
Income taxes paid	(1,399,920)	(1,170,196)
Cash provided by operating activities	5,363,783	7,684,982
Cash flows from investing activities
Available for sale	(4,943,748)	(6,854,680)
Held to maturity	223,000	1,612,309
Available for sale	(4,007,664)	(1,132,224)
Held to maturity	(122,313)	(1,805,924)
Loans made to customers, net of principal collected	(11,427,440)	(40,409,645)
Proceeds from sale of SBA loans	2,883,963	2,849,724
Redemption (purchase) of stock in FHLB of Atlanta	487,800	(285,300)
Purchases of premises, equipment and software	(191,744)	(114,243)
Cash used by investing activities	(7,210,650)	(32,430,623)
Cash flows from financing activities
Net increase (decrease) in Noninterest-bearing deposits	(1,685,613)	1,611,298
Interest-bearing deposits	36,602,192	15,469,990
Securities sold under repurchase agreements	(10,756,507)	(5,457,652)
Federal Home Loan Bank of Atlanta advances	(14,000,000)	8,000,000
Dividends paid, net of reinvestments	(933,903)	(953,525)
Common stock issued	1,550
Cash provided by financing activities	9,227,719	18,670,111
Net increase (decrease) in cash and cash equivalents	7,380,852	(6,075,530)
Cash and cash equivalents at beginning of period	7,237,385	13,312,915
Cash and cash equivalents at end of period	14,618,237	7,237,385
Reconciliation of net income to net cash provided by operating activities
Net income	4,712,676	3,789,241
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	380,461	419,281
Provision for loan losses	475,000	410,000
Write down of other real estate owned	55,350	148,500
Write down of other assets	4,500	1,500
Equity security dividends reinvested	(11,375)	(10,740)
Unrealized loss on equity security	11,429
Gain on sale of SBA loans	(226,026)	(223,251)
Deferred income taxes	(111,360)	(347,446)
Revaluation of deferred tax asset due to change in corporate income tax rate		410,391
Amortization of premiums and accretion of discounts, net	123,253	136,874
Increase (decrease) in
Deferred loan fees	(72,426)	126,038
Accrued interest payable	130,869	38,717
Other liabilities	366,692	624,102
Decrease (increase) in
Mortgage loans held for sale	(245,938)	556,800
Accrued interest receivable	29,727	(63,293)
Bank owned life insurance cash surrender value	(161,764)	(170,588)
Other assets	(97,285)	1,838,855
Cash provided by operating activities	$ 5,363,783	$ 7,684,982