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Note 14 - Net Loss Per Share (Tables) | 9 Months Ended
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Jun. 30, 2025
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
​ |  | Three Months Ended |  |  | Nine Months Ended |
​ |  | June 30, |  |  | June 30, |
​ |  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Income (loss) from continuing operations |  | $ | 680 |  |  | $ | (158 | ) |  | $ | (26,926 | ) |  | $ | (23,552 | )
Loss from discontinued operations, net of tax |  |  | (53,486 | ) |  |  | (6,424 | ) |  |  | (79,676 | ) |  |  | (135,634 | )
Net loss |  | $ | (52,806 | ) |  | $ | (6,582 | ) |  | $ | (106,602 | ) |  | $ | (159,186 | )
​ |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Weighted average common shares outstanding used in computing basic income (loss) per share |  |  | 45,780 |  |  |  | 52,963 |  |  |  | 45,712 |  |  |  | 54,914 |
Dilutive restricted stock units |  |  | 43 |  |  |  | — |  |  |  | — |  |  |  | — |
Weighted average common shares outstanding used in computing diluted income (loss) per share |  |  | 45,823 |  |  |  | 52,963 |  |  |  | 45,712 |  |  |  | 54,914 |
​ |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Basic net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 0.01 |  |  | $ | (0.00 | ) |  | $ | (0.59 | ) |  | $ | (0.43 | )
Loss from discontinued operations, net of tax |  | $ | (1.17 | ) |  | $ | (0.12 | ) |  | $ | (1.74 | ) |  | $ | (2.47 | )
Basic net loss per share |  | $ | (1.15 | ) |  | $ | (0.12 | ) |  | $ | (2.33 | ) |  | $ | (2.90 | )
​ |  | ​ |  |  | ​ |  |  | ​ |  |  | ​ |
Diluted net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from continuing operations |  | $ | 0.01 |  |  | $ | (0.00 | ) |  | $ | (0.59 | ) |  | $ | (0.43 | )
Loss from discontinued operations, net of tax |  | $ | (1.17 | ) |  | $ | (0.12 | ) |  | $ | (1.74 | ) |  | $ | (2.47 | )
Diluted net loss per share |  | $ | (1.15 | ) |  | $ | (0.12 | ) |  | $ | (2.33 | ) |  | $ | (2.90 | )

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482662/260-10-50-1 + Details
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