Note 11 - Stock-based Compensation - Number of Shares Issued and Cash Received Upon Exercise of the Stock Options (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Apr. 30, 2026 |
Apr. 30, 2025 |
Apr. 30, 2026 |
Apr. 30, 2025 |
|
| Number of Options Exercised on a Cash Basis (in shares) | 2,100 | 1,250 | 353,917 | 49,963 |
| Number of Options Exercised on a Non-Cash Basis (in shares) | 102,200 | 28,500 | 792,103 | 217,014 |
| Total Number of Options Exercised (in shares) | 104,300 | 29,750 | 1,146,020 | 266,977 |
| Number of Shares Issued on a Cash Basis (in shares) | 2,100 | 1,250 | 353,917 | 49,963 |
| Number of Shares Issued on a Non-Cash Basis (in shares) | 83,614 | 14,178 | 623,570 | 124,567 |
| Total Number of Shares Issued Upon Exercise of Options (in shares) | 85,714 | 15,428 | 977,487 | 174,530 |
| Cash Received from Exercise of Stock Options | $ 11 | $ 5 | $ 922 | $ 134 |
| Total Intrinsic Value of Options Exercised | $ 1,379 | $ 101 | $ 10,671 | $ 1,211 |
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. No definition available.
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| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period on cash basis. No definition available.
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| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period on forfeiture basis. No definition available.
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| X | ||||||||||
- Definition Number of share options (or share units) exercised in cash during the current period. No definition available.
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| X | ||||||||||
- Definition Number of share options (or share units) exercised on a forfeiture basis during the current period. No definition available.
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| X | ||||||||||
- Definition Amount of cash inflow from exercise of option under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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