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Note 14 - Income Taxes - Reconciliation of Statutory Federal Tax Rate and Effective Tax Rate From Continuing Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Federal income tax at the statutory rate, amount |  |  |  |  |  |  |  |  | $ 13,014 | $ 12,633 | $ 13,971
Federal income tax at the statutory rate |  |  |  |  |  |  |  |  | 21.00% | 21.00% | 21.00%
State income tax, net of federal benefit, amount |  |  |  |  |  |  |  |  | $ 1,368 | $ 1,432 | $ 2,076
State income tax, net of federal benefit |  |  |  |  |  |  |  |  | 2.21% | 2.38% | 3.12%
Total effective income tax rate reconciliation, amount |  |  |  |  |  |  |  |  | $ 14,382 | $ 14,065 | $ 16,047
Total effective income tax rate reconciliation |  |  |  |  |  |  |  |  | 23.21% | 23.38% | 24.12%
Tax-exempt interest income, amount |  |  |  |  |  |  |  |  | $ (348) | $ (347) | $ (340)
Tax-exempt interest income |  |  |  |  |  |  |  |  | (0.56%) | (0.58%) | (0.51%)
Excess tax benefits |  |  |  |  |  |  |  |  | $ (25) | $ (24) | $ (133)
Excess tax benefits |  |  |  |  |  |  |  |  | (0.04%) | (0.04%) | (0.20%)
Bank owned life insurance, amount |  |  |  |  |  |  |  |  | $ (167) | $ (68) | $ (225)
Bank owned life insurance |  |  |  |  |  |  |  |  | (0.27%) | (0.11%) | (0.34%)
Other items, net, amount |  |  |  |  |  |  |  |  | $ 112 | $ (131) | $ 11
Other items, net |  |  |  |  |  |  |  |  | 0.17% | (0.22%) | 0.02%
Total income tax expense | $ 2,932 | $ 4,307 | $ 3,057 | $ 3,658 | $ 3,076 | $ 4,111 | $ 3,423 | $ 2,885 | $ 13,954 | $ 13,495 | $ 15,360
Income tax at the effective tax rate |  |  |  |  |  |  |  |  | 22.51% | 22.43% | 23.09%

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- Definition Percentage 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 applicable to domestic, state, and local income taxes. + References No definition available. + Details
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- Definition The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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