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OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 6 Months Ended
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Mar. 31, 2026
Other Comprehensive Income (Loss) [Abstract] |
Schedule of Components of Other Comprehensive Income (Loss) and the Related Income Tax Effects | The components of other comprehensive income (loss) and the related income tax effects are as follows:
|  | Three Months Ended March 31, |
|  | 2026 |  |  | 2025 |
|  |  |  |  |  |  |  | Net of |  |  |  |  |  |  |  |  | Net of |
|  | Before Tax |  |  | Tax |  |  | Tax |  |  | Before Tax |  |  | Tax |  |  | Tax |
|  | Amount |  |  | Expense (1) |  |  | Amount |  |  | Amount |  |  | Expense (1) |  |  | Amount |
|  | (In thousands) |
Unrealized holding (loss) gain arising during period on: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale investments |  | $ | (61 | ) |  | $ | 15 |  |  | $ | (46 | ) |  | $ | 263 |  |  | $ | (65 | ) |  | $ | 198 |
Other comprehensive (loss) income, net |  | $ | (61 | ) |  | $ | 15 |  |  | $ | (46 | ) |  | $ | 263 |  |  | $ | (65 | ) |  |  | 198 |
|  | Six Months Ended March 31, |
|  | 2026 |  |  | 2025 |
|  |  |  |  |  |  |  | Net of |  |  |  |  |  |  |  |  | Net of |
|  | Before Tax |  |  | Tax |  |  | Tax |  |  | Before Tax |  |  | Tax |  |  | Tax |
|  | Amount |  |  | Expense (1) |  |  | Amount |  |  | Amount |  |  | Expense (1) |  |  | Amount |
|  | (In thousands) |
Unrealized holding (loss) gain arising during period on: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale investments |  | $ | 69 |  |  | $ | (17 | ) |  | $ | 52 |  |  | $ | 26 |  |  | $ | (6 | ) |  | $ | 20 |
Other comprehensive income, net |  | $ | 69 |  |  | $ | (17 | ) |  | $ | 52 |  |  | $ | 26 |  |  | $ | (6 | ) |  |  | 20 |

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 1 -Section 45 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1 + Details
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