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Note 7 - Restructuring (Tables) | 9 Months Ended
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Jun. 30, 2025
Notes Tables |
Restructuring and Related Costs [Table Text Block] |
​ |  | Three Months Ended June 30, |  |  | Nine Months Ended June 30, |
​ |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Severance and related costs |  | $ | 971 |  |  | $ | 852 |  |  | $ | 4,740 |  |  | $ | 3,625 |
ROU asset abandonment |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 901 |
Other |  |  | (217 | ) |  |  | 849 |  |  |  | 25 |  |  |  | 1,389 |
Total restructuring charges |  | $ | 754 |  |  | $ | 1,701 |  |  | $ | 4,765 |  |  | $ | 5,915 |
Schedule of Restructuring Reserve by Type of Cost [Table Text Block] |
​ |  | Nine Months Ended June 30, |
​ |  | 2025 |  |  | 2024 |
Balance at beginning of period |  | $ | 755 |  |  | $ | 665 |
Provisions |  |  | 4,740 |  |  |  | 3,625 |
Payments |  |  | (4,637 | ) |  |  | (3,305 | )
Balance at end of period |  | $ | 858 |  |  | $ | 985 |

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- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
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- Definition Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4.b.2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479823/420-10-S99-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482017/420-10-50-1 + Details
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