Note 6 - Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Book value	$ 39,141	$ 39,272
Accumulated depreciation and amortization	(23,678)	(22,732)
Net book value	15,463	16,540
Land and Building [Member]
Property, Plant and Equipment [Line Items]
Book value	15,970	15,933
Furniture and Equipment Member]
Property, Plant and Equipment [Line Items]
Book value	16,640	16,345
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Book value	3,622	3,571
Right-of-Use Asset [Member]
Property, Plant and Equipment [Line Items]
Book value	$ 2,909	$ 3,423