Condensed Consolidated Statements of Comprehensive Income (Loss) (Parentheticals) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Statement of Comprehensive Income [Abstract] | ||||
| Net investment hedge currency translation adjustment, net of tax effects of $0 and $0 for the three and nine months ended June 30, 2026 and 2025, respectively | $ 0 | $ 0 | $ 0 | $ 0 |
| Changes in unrealized losses on marketable securities, net of tax effects of $0 and $0 for the three and nine months ended June 30, 2026 and 2025, respectively | 0 | 0 | 0 | 0 |
| Actuarial loss on pension plans, net of tax effects of $14 and $41 for the three and nine months ended June 30, 2026, respectively, and $17 and $52 for the three and nine months ended June 30, 2025, respectively | $ 14 | $ 17 | $ 41 | $ 52 |