Note 12 - Income Taxes - Effective Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Federal taxes based on statutory rate	$ 2,415	$ 1,874	$ 1,823
State income taxes, net of federal benefit	384	336	326
Tax-exempt investment interest	(836)	(593)	(280)
Income related to bank-owned life insurance	(159)	(218)	(126)
Other, net	77	32	9
Income tax expense	$ 1,881	$ 1,431	$ 1,752

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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