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Note 12 - Income Taxes (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Effective Income Tax Rate Reconciliation, Percent, Total | 9.80% | 19.00% | 17.90%
Deferred Tax Assets, Valuation Allowance | $ 20,699,000 | $ 22,716,000 |
Deferred Tax Assets, Operating Loss Carryforwards, Domestic | 22,600 |  |
Deferred Tax Assets, Operating Loss Carryforwards, State and Local | $ 28,600,000 |  |
Open Tax Year | 2018 2019 2020 2021 2022 |  |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate | $ 900,000 | $ 700,000 | $ 600,000
Domestic Tax Authority [Member] |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration | $ 104,000,000.0 |  |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32632-109319 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32621-109319 + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32537-109319 + Details
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