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Note 9 - Stock-based Compensation - Summary of Liability-classified Performance Awards (Details) - Liability-classified Performance Award [Member] $ in Thousands | Oct. 31, 2025 USD ($)
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Estimated liability (1) | $ 2,302 | [1]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ 2,349 | [2],[3]
[1] | Included in the caption “accrued compensation” on the unaudited condensed consolidated balance sheets.
[2] | Expected to be recognized over a weighted-average period of 1.7 years.
[3] | Expected to be recognized over a weighted-average period of 2.2 years.

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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-4 + Details
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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Details
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