Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 5,290,240	$ 4,647,119	$ 3,807,492
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	856,676	829,500	300,000
Depreciation	1,200,032	1,036,986	881,000
Net amortization of investment securities	340,934	356,101	396,899
Income on cash surrender value of bank owned life insurance	(133,861)	(147,824)	(133,398)
Amortization of intangibles	3,907	15,625	15,625
Disposal of fixed assets to charitable expense	0	0	13,045
Loss (gain) on sale/writedown of foreclosed assets	(37,589)	(17,974)	8,892
Net loss (gain) on disposal of fixed assets	(250,460)	753	1,594
Net loss (gain) on sale of securities	(174,283)	165,369	(186,610)
Net loss on disposal of bank property held for sale	0	96,750	0
Net gain on extinguishment of debt	(143,031)	(317,832)	0
Stock-based compensation	74,623	17,627	0
Change in:
Other assets	(146,294)	71,733	489,903
Other liabilities	142,223	(193,157)	288,505
Net cash provided by operating activities	7,023,117	6,560,776	5,882,947
Cash flows from investing activities:
Proceeds from calls, paydowns and maturities of securities HTM	11,298,080	12,252,434	10,070,453
Proceeds from calls, paydowns and maturities of securities AFS	5,499,264	795,028	635,818
Proceeds from Federal Home Loan Bank Stock repurchase	996,200	1,164,500	705,100
Proceeds from sale of securities available for sale	9,358,503	2,879,000	5,741,211
Proceeds from maturity of certificates of deposit in other banks	247,000	0	0
Purchase of securities held to maturity	0	(4,637,047)	(265,000)
Purchase of securities available for sale	(22,400,552)	(8,762,879)	(7,039,139)
Purchase of Federal Home Loan Bank Stock	(890,500)	(546,600)	(1,269,100)
Purchase certificates of deposit in other banks	(245,000)	(747,000)	(1,985,000)
Net change in loans	(22,638,586)	(47,511,765)	(38,895,975)
Purchase bank owned life insurance	0	0	(1,063,237)
Purchase of premises and equipment	(616,906)	(3,382,015)	(1,955,067)
Capitalized other real estate expenditures	(41,836)	0	0
Proceeds from sales of fixed assets and foreclosed assets	974,857	1,131,894	233,553
Proceeds from the sale of bank property held for sale	0	114,750	0
Net cash used by investing activities	(18,459,476)	(47,249,700)	(35,086,383)
Cash flows from financing activities:
Net change in deposits	17,794,578	58,633,827	25,512,772
Payment of short-term portion of long-term debt	(41,490,744)	(22,971,429)	(13,447,619)
Payments for early retirement of long-term debt	(11,501,939)	(9,110,739)	0
Proceeds from issuance of short-term debt	32,214,286	8,000,000	7,857,143
Proceeds from issuance of long-term debt	17,785,714	9,000,000	18,142,857
Cash dividends paid	(1,221,766)	(1,196,332)	(1,120,872)
Payments for treasury stock	(11,929)	(306,032)	(122,340)
Net cash provided by financing activities	13,568,200	42,049,295	36,821,941
Increase in cash and cash equivalents	2,131,841	1,360,371	7,618,505
Cash and cash equivalents - beginning of period	35,498,792	34,138,421	26,519,916
Cash and cash equivalents - end of period	37,630,633	35,498,792	34,138,421
CASH PAID DURING THE YEAR FOR:
Income taxes	1,080,000	365,000	895,000
Interest paid	4,468,077	3,246,847	1,881,924
NONCASH ITEMS:
Increase in foreclosed properties and decrease in loans	850,851	503,655	903,842
Unrealized gain (loss) on securities AFS	2,094,120	(665,446)	140,074
Unrealized gain (loss) on pension plan benefits	1,375,329	(40,601)	503,167
Net reclass between short and long-term debt	4,707,143	7,457,143	15,114,286
Sale of fixed assets through loans	0	13,000	0
Sale of foreclosed properties through loans	208,400	0	38,000
Retirement of treasury stock	$ 0	$ 26,242,793	$ 0