Note 5 - Premises and Equipment - Major Classifications of Premises and Equipment (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Gross premises and equipment	$ 32,703,300	$ 32,628,931
Less accumulated depreciation	(15,917,910)	(14,730,522)
Net premises and equipment	16,785,390	17,898,409
Land [Member]
Gross premises and equipment	4,360,353	4,360,353
Building and Building Improvements [Member]
Gross premises and equipment	11,901,256	11,896,382
Automobiles [Member]
Gross premises and equipment	52,404	52,404
Furniture and Fixtures [Member]
Gross premises and equipment	13,994,335	13,924,839
Leasehold Improvements [Member]
Gross premises and equipment	$ 2,394,953	$ 2,394,953

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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