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Note 9 - Income Tax | 9 Months Ended
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Sep. 30, 2024
Notes to Financial Statements |
Income Tax Disclosure [Text Block] | Note 9 - Income Tax Deferred tax assets and liabilities are recognized for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. These calculations are based on many complex factors including estimates of the timing of reversals of temporary differences, the interpretation of federal income tax laws, and a determination of the differences between the tax and the financial reporting basis of assets and liabilities. Actual results could differ significantly from the estimates and interpretations used in determining the current and deferred income tax assets and liabilities. The effective tax rates were 25.5% and 19.9% for the nine months ended September 30, 2024 and 2023, respectively. The effective tax rates differ from the statutory maximum federal tax rate for 2024 and 2023 of 21%, largely due to the nontaxable earnings on bank-owned life insurance ("BOLI") and tax-exempt interest income earned on certain investment securities and loans. The current period rate includes an estimate for taxes and penalties on the early surrender of a BOLI contract which was recorded in the first quarter of 2024.

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