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v3.25.2

Note 1 - Significant Accounting Policies (Details Textual) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Sep. 30, 2024 USD ($)
Cash and Cash Equivalent | $ 23,559 |  | $ 23,559 |  | $ 6,895
Credit Terms for Trade Receivables (Day) |  |  | 30 days |  |
Extended Credit Terms for Trade Receivables (Day) |  |  | 60 days |  |
Research and Development Expense | 4,238 | $ 4,011 | $ 14,367 | $ 11,476 |
Accounts Receivable [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Number of Major Customers |  |  | 2 |  |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer One [Member] |  |  |  |  |
Accounts and Financing Receivable, after Allowance for Credit Loss | 15,300 |  | $ 15,300 |  |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Two [Member] |  |  |  |  |
Accounts and Financing Receivable, after Allowance for Credit Loss | 9,700 |  | $ 9,700 |  |
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member] |  |  |  |  |
Number of Major Customers |  |  | 2 |  |
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member] | Customer One [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | 1,100 | 1,300 | $ 20,600 | 35,000 |
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member] | Customer Two [Member] |  |  |  |  |
Revenue from Contract with Customer, Including Assessed Tax | 0 | $ 3,400 | 75,000,000 | $ 10,100 |
Subsidiaries [Member] | Non-US [Member] |  |  |  |  |
Cash and Cash Equivalent | $ 1,000 |  | $ 1,000 |  | $ 1,100

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