Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income	$ 4,647,119	$ 3,807,492	$ 4,033,977
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	829,500	300,000	160,000
Depreciation	1,036,986	881,000	923,578
Net amortization of investment securities	356,101	396,899	309,185
Income on cash surrender value of bank owned life insurance	(147,824)	(133,398)	(125,290)
Amortization of intangibles	15,625	15,625	15,625
Disposal of fixed assets to charitable expense	0	13,045	0
Loss (gain) on sale/writedown of foreclosed assets	(17,974)	8,892	0
Net loss (gain) on disposal of fixed assets	753	1,594	(36,701)
Net loss (gain) on sale of securities	(165,369)	186,610	168,919
Net loss on disposal of bank property held for sale	96,750	0	0
Net gain on extinguishment of debt	(317,832)	0	0
Stock-based compensation	17,627	0	0
Change in:
Other assets	71,733	489,903	(253,894)
Other liabilities	(193,157)	288,505	324,142
Net cash provided by operating activities	6,560,776	5,882,947	5,181,703
Cash flows from investing activities:
Proceeds from calls, paydowns and maturities of securities HTM	12,252,434	10,070,453	5,952,271
Proceeds from calls, paydowns and maturities of securities AFS	795,028	635,818	10,354,337
Proceeds from Federal Home Loan Bank Stock repurchase	1,164,500	705,100	413,700
Proceeds from sale of securities available for sale	2,879,000	5,741,211	11,933,634
Proceeds from sale of securities held to maturity	0	0	576,834
Proceeds from maturity of certificates of deposit in other banks	0	0	245,000
Purchase of securities held to maturity	(4,637,047)	(265,000)	(478,559)
Purchase of securities available for sale	(8,762,879)	(7,039,139)	(25,129,827)
Purchase of Federal Home Loan Bank Stock	(546,600)	(1,269,100)	(418,700)
Purchase certificates of deposit in other banks	(747,000)	(1,985,000)	0
Net change in loans	(47,511,765)	(38,895,975)	(41,850,494)
Purchase bank owned life insurance	0	(1,063,237)	0
Purchase of premises and equipment	(3,382,015)	(1,955,067)	(1,455,043)
Proceeds from sales of fixed assets and foreclosed assets	1,131,894	233,553	304,825
Proceeds from the sale of bank property held for sale	114,750	0	0
Net cash used by investing activities	(47,249,700)	(35,086,383)	(39,552,022)
Cash flows from financing activities:
Net change in deposits	58,633,827	25,512,772	32,477,143
Payment of short-term portion of long-term debt	(22,971,429)	(13,447,619)	(7,590,476)
Payments for early retirement of long-term debt	(9,110,739)	0	0
Proceeds from issuance of short-term debt	8,000,000	7,857,143	857,143
Proceeds from issuance of long-term debt	9,000,000	18,142,857	5,142,857
Cash dividends paid	(1,196,332)	(1,120,872)	(1,070,047)
Payments for treasury stock	(306,032)	(122,340)	(6,658)
Net cash provided by financing activities	42,049,295	36,821,941	29,809,962
Increase (decrease) in cash and cash equivalents	1,360,371	7,618,505	(4,560,357)
Cash and cash equivalents - beginning of period	34,138,421	26,519,916	31,080,273
Cash and cash equivalents - end of period	35,498,792	34,138,421	26,519,916
CASH PAID DURING THE YEAR FOR:
Income taxes	365,000	895,000	964,000
Interest paid	3,246,847	1,881,924	1,600,593
NONCASH ITEMS:
Increase in foreclosed properties and decrease in loans	503,655	903,842	44,963
Unrealized gain (loss) on securities AFS	(665,446)	140,074	(848,222)
Unrealized gain (loss) on pension plan benefits	(40,601)	503,167	(110,306)
Net reclass between short and long-term debt	7,457,143	15,114,286	7,590,476
Sale of fixed assets through loans	13,000	0	0
Sale of foreclosed properties through loans	0	38,000	0
Property moved from fixed assets to property held for sale	0	0	211,500
Retirement of treasury stock	$ 26,242,793	$ 0	$ 0