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Note 7 - Share-based Compensation - Shared-based Compensation Expense and the Related Tax Benefit (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Share-based compensation expense | $ 928 | $ 1,088 | $ 3,382 | $ 2,757
Stock Options and SARs [Member] |  |  |  |
Share-based compensation expense | 339 | 327 | 1,080 | 1,105
Restricted Stock [Member] |  |  |  |
Share-based compensation expense | 446 | 545 | 2,050 | 1,183
Performance Shares [Member] |  |  |  |
Share-based compensation expense | $ 143 | $ 216 | $ 252 | $ 469

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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