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Note 7 - Income Taxes - Effective Rate Reconciliation (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Statutory income tax rate | 21.00% | 21.00%
Equity compensation | 11.60% | 4.50%
Acquisition-related costs | (34.70%) |
Income tax credits | 72.70% | (2.30%)
Foreign tax rate change | (89.70%) | 0.00%
Foreign tax rates | (15.50%) | 0.10%
States taxes | (10.80%) | 0.30%
Other | (7.00%) | 0.50%
Effective income tax rate | (52.40%) | 24.10%

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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 attributable to changes in the income tax rates. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319 + Details
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- Definition Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments. + References No definition available. + Details
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