Note 2 - Significant Accounting Policies (Details Textual) shares in Thousands	3 Months Ended
Oct. 31, 2025 USD ($) shares	Oct. 31, 2024 shares	Jul. 31, 2025 USD ($)
Cash Equivalents, at Carrying Value	$ 0		$ 0
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) \| shares	0	0
Accounts Receivable, after Allowance for Credit Loss	$ 11,240		$ 6,750
Number of Operating Segments	1

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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