Note 4 - Premises and Equipment, Net - Summary of Premises and Equipment (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Property, plant and equipment, gross	$ 87,706,000	$ 94,253,000
Less: accumulated depreciation	36,304,000	36,955,000
Premises and equipment, net	51,402,000	57,298,000
Land and Land Improvements [Member]
Property, plant and equipment, gross	13,504,000	15,111,000
Building [Member]
Property, plant and equipment, gross	51,555,000	56,168,000
Furniture and Fixtures [Member]
Property, plant and equipment, gross	$ 22,647,000	$ 22,974,000

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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