Note 9 - Income Taxes - Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Allowance for credit losses and unearned fee income	$ 2,155	$ 1,906
Valuation allowance on other real estate owned	0	248
Defined benefit pension plan	614	623
Deferred compensation and other liabilities	889	919
Net unrealized loss on securities available for sale	16,629	21,644
Lease accounting	237	303
Unvested stock-based compensation	5	0
Total deferred tax assets	20,529	25,643
Deferred tax liabilities:
Fixed assets	(597)	(463)
Goodwill	(1,228)	(1,228)
Defined benefit pension plan, prepaid portion	(2,034)	(2,013)
Lease accounting	(230)	(297)
Discount accretion of securities	(122)	(84)
Total deferred tax liabilities	(4,211)	(4,085)
Net deferred tax assets	$ 16,318	$ 21,558