Note 5 - Premises, Equipment, Other Assets and Other Liabilities - Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Cost	$ 88,846	$ 88,904
Accumulated Depreciation and Amortization	(61,830)	(60,085)
Net Book Value	27,016	28,819
Land [Member]
Cost	11,453	11,453
Accumulated Depreciation and Amortization	0	0
Net Book Value	11,453	11,453
Building and Building Improvements [Member]
Cost	43,185	42,528
Accumulated Depreciation and Amortization	(31,742)	(30,601)
Net Book Value	11,443	11,927
Leasehold Improvements [Member]
Cost	7,622	8,157
Accumulated Depreciation and Amortization	(6,550)	(6,897)
Net Book Value	1,072	1,260
Furniture and Fixtures [Member]
Cost	26,586	26,766
Accumulated Depreciation and Amortization	(23,538)	(22,587)
Net Book Value	$ 3,048	$ 4,179