Annual report pursuant to Section 13 and 15(d)

Note 16 - Income Taxes - Reconciliation From Federal Income Tax Statutory Rates to Income Before Income Taxes (Details)

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Note 16 - Income Taxes - Reconciliation From Federal Income Tax Statutory Rates to Income Before Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Income tax at statutory federal rate, amount $ 39,241 $ 35,457 $ 48,073
Income tax at statutory federal rate, pre-tax earnings 21.00% 21.00% 35.00%
State income tax, net of federal tax effect, amount $ 822 $ 808 $ 43
State income tax, net of federal tax effect, pre-tax earnings 0.44% 0.48% 0.03%
Tax-exempt income, net of expenses, amount $ (461) $ (655) $ (1,356)
Tax-exempt income, net of expenses, pre-tax earnings (0.25%) (0.39%) (0.99%)
Bank owned life insurance contracts, amount $ (787) $ (657) $ (1,096)
Bank owned life insurance contracts, pre-tax earnings (0.42%) (0.39%) (0.80%)
Excess tax benefit from stock compensation, amount $ (1,405) $ (3,118) $ (4,278)
Excess tax benefit from stock compensation, pre-tax earnings (0.75%) (1.84%) (3.11%)
Federal tax credits, amount $ (170) $ (113) $ (234)
Federal tax credits, pre-tax earnings (0.09%) (0.07%) (0.17%)
Other, amount $ 378 $ 180 $ (2)
Other, pre-tax earnings 0.20% 0.10% 0.00%
Effective income tax and rate, amount $ 37,618 $ 31,902 $ 44,258
Effective income tax and rate, pre-tax earnings 20.13% 18.89% 32.22%
Enacted tax rate change, amount     $ 3,108
Enacted tax rate change, pre-tax earnings     2.26%