Note 23 - Condensed Parent Company Statements - Condensed Statements of Cash Flows (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income	$ 2,505,634	$ 3,400,310	$ 2,516,182	$ 2,216,016	$ 946,210	$ 1,897,776	$ 1,883,383	$ 2,104,845	$ 10,638,142	$ 6,832,214	$ 9,415,090
Accretion of purchase accounting adjustments									(110,620)	(406,650)	(1,629,721)
Stock award plan expense									485,322	136,138	615,385
Prepaid expenses and other assets									997,963	1,121,052	(1,302,099)
Net cash provided by operating activities									19,077,840	4,622,955	8,326,806
Proceeds from stock options exercised									0	0	90,000
Cash dividends paid									(2,627,916)	(2,615,028)	(2,313,661)
Proceeds from issuance of subordinated notes, net									0	19,545,555	0
Repayment of Hometown Bancshares subordinated debentures									(5,155,000)	0	0
Net cash provided by (used in) financing activities									19,863,357	123,556,914	25,868,699
Increase (Decrease) in cash									(17,776,869)	55,750,999	58,550,267
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD				148,422,908				92,671,909	148,422,908	92,671,909	34,121,642
CASH AND CASH EQUIVALENTS, END OF PERIOD	130,646,039				148,422,908				130,646,039	148,422,908	92,671,909
Parent Company [Member]
Net income									10,638,142	6,832,214	9,415,090
Distributions in excess of subsidiaries									(8,421,174)	(6,109,891)	(3,454,464)
Deferred income taxes									789,978	(237,281)	(633,608)
Accretion of purchase accounting adjustments									0	0	(109,829)
Stock award plan expense									485,322	136,138	615,385
Prepaid expenses and other assets									(327,524)	118,386	(28,124)
Income taxes payable/refundable									(86,645)	(193,812)	157,458
Accrued expenses									384,272	270,503	(26,374)
Net cash provided by operating activities									3,462,371	816,257	5,935,534
Proceeds from stock options exercised									0	0	90,000
Cash dividends paid									(2,627,916)	(2,615,028)	(2,313,661)
Proceeds from issuance of notes payable									0	1,800,000	7,450,000
Proceeds from issuance of subordinated notes, net									0	19,545,555	0
Repayment of notes payable									0	(13,000,000)	(1,250,000)
Repayment of Hometown Bancshares subordinated debentures									(5,000,000)	0	(6,000,000)
Treasury Stock purchased									0	(390,268)	(3,604,879)
Net cash provided by (used in) financing activities									(7,627,916)	5,340,259	(5,628,540)
Increase (Decrease) in cash									(4,165,545)	6,156,516	306,994
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD				$ 7,940,245				$ 1,783,729	7,940,245	1,783,729	1,476,735
CASH AND CASH EQUIVALENTS, END OF PERIOD	$ 3,774,700				$ 7,940,245				$ 3,774,700	$ 7,940,245	$ 1,783,729