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Note 9 - Stock Transactions and Stock-based Compensation - Allocation of Share-based Compensation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022 | Mar. 31, 2021
Stock-based compensation expense | $ 12,538 | $ 11,391 | $ 9,268
Amount of income tax (benefit) recognized in earnings | (1,169) | (4,055) | (1,816)
Stock-based compensation expense, net of tax | $ 11,369 | $ 7,336 | $ 7,452

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- Definition The total recognized tax expense (benefit) related to compensation cost for equity-based payment arrangements recognized in income during the period. + References No definition available. + Details
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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 -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Amount, after tax, of expense for award under share-based payment arrangement. + References No definition available. + Details
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