Note 23 - Condensed Parent Company Statements - Condensed Statements of Income (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 gain (loss) on foreclosed assets									$ (121,440)	$ 36,057	$ (235,394)
Interest expense	$ 1,157,218	$ 1,468,447	$ 1,828,156	$ 2,071,133	$ 2,151,524	$ 2,236,743	$ 2,136,409	$ 3,086,525	6,524,954	9,611,201	13,535,014
Other									4,127,377	4,045,811	3,804,805
Income before income taxes	3,210,110	4,202,741	3,239,206	2,665,870	905,926	2,316,595	2,332,036	2,512,835
Provision for income taxes	704,476	802,431	723,024	449,854	(40,284)	418,819	448,653	407,990	2,679,785	1,235,178	1,683,158
Net income available to common shareholders	$ 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
Parent Company [Member]
Dividends from subsidiary bank									5,000,000	2,500,000	8,000,000
Net gain (loss) on foreclosed assets									26,259	74,716	0
Other									10,216	22,515	40,855
Revenues, Total									5,036,475	2,597,231	8,040,855
Interest expense									1,050,000	716,070	362,079
Other									2,481,173	1,839,930	2,439,799
Costs and Expenses, Total									3,531,173	2,556,000	2,801,878
Income before income taxes									1,505,302	41,231	5,238,977
Provision for income taxes									(711,666)	(681,092)	(721,649)
Income before equity in undistributed earnings of subsidiaries									2,216,968	722,323	5,960,626
Equity in undistributed income of subsidiaries									8,421,174	6,109,891	3,454,464
Net income available to common shareholders									$ 10,638,142	$ 6,832,214	$ 9,415,090