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Note 7 - Restructuring - Schedule of Restructuring Reserve (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Provisions | $ 754 | $ 1,701 | $ 4,765 | $ 5,915
Employee Severance [Member] |  |  |  |
Balance at beginning of period |  |  | 755 | 665
Provisions |  |  | 4,740 | 3,625
Payments |  |  | (4,637) | (3,305)
Balance at end of period | $ 858 | $ 985 | $ 858 | $ 985

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