Note 13 - Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Federal taxes based on statutory rate	$ 374	$ 2,415	$ 1,874
State income taxes, net of federal benefit	159	384	336
Tax-exempt investment interest	(543)	(836)	(593)
Income related to bank-owned life insurance	(165)	(159)	(218)
Other, net	101	77	32
Income tax expense	$ (74)	$ 1,881	$ 1,431

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible life insurance expense.

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