Note 7 - Premises and Equipment - Summary of Premises and Equipment (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Cost:
Premises and equipment	$ 11,251,014	$ 11,138,259
Less: Accumulated depreciation	4,733,092	4,517,179
	6,517,922	6,621,080
Land [Member]
Cost:
Premises and equipment	2,190,649	2,190,649
Building [Member]
Cost:
Premises and equipment	7,561,302	7,427,612
Furniture and Fixtures [Member]
Cost:
Premises and equipment	$ 1,499,063	$ 1,519,998

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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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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