Note 6 - Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Book value	$ 36,926	$ 39,141
Accumulated depreciation and amortization	(21,974)	(23,678)
Net book value	14,952	15,463
Land and Building [Member]
Property, Plant and Equipment [Line Items]
Book value	16,102	15,970
Furniture and Equipment Member]
Property, Plant and Equipment [Line Items]
Book value	14,470	16,640
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Book value	3,632	3,622
Right-of-Use Asset [Member]
Property, Plant and Equipment [Line Items]
Book value	$ 2,722	$ 2,909