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Note I - Stockholders' Equity (Details Textual) - USD ($) $ in Millions |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 14, 2022 | Mar. 12, 2021 | Sep. 18, 2020 | Jun. 30, 2024
Stock Repurchase Program, Additional Authorized Amount | $ 3.0 | $ 3.0 | $ 2.0 |
Share Repurchase Program, Authorized, Amount | $ 18.0 | $ 15.0 | $ 12.0 |
Restricted Stock [Member] |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount |  |  |  | $ 1.7
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) |  |  |  | 2 years 1 month 6 days

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- Definition Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481520/505-30-50-4 + Details
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