Note 5 - Bank Premises and Equipment - Bank Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
ROU assets	$ 1,771	$ 2,038
Less: accumulated depreciation and amortization	(23,836)	(21,853)
Bank premises and equipment, net	39,534	40,705
Land [Member]
Bank premises and equipment, gross	9,626	9,626
Building and Building Improvements [Member]
Bank premises and equipment, gross	38,823	38,425
Furniture and Fixtures [Member]
Bank premises and equipment, gross	10,915	10,615
Software and Software Development Costs [Member]
Bank premises and equipment, gross	1,824	1,813
Construction in Progress [Member]
Bank premises and equipment, gross	$ 411	$ 41

Amount, before accumulated amortization, of right-of-use asset from finance lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount of accumulated depreciation and amortization from plant, property, and equipment and right-of-use asset from finance lease.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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