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OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 9 Months Ended
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Jun. 30, 2023
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 June 30,
|  | 2023 |  | 2022
|  |  |  | Tax |  | Net of |  |  |  | Tax |  | Net of
|  | Before Tax |  | (Benefit) |  | Tax |  | Before Tax |  | (Benefit) |  | Tax
|  | Amount |  | Expense |  | Amount |  | Amount |  | Expense |  | Amount
|  | (In thousands)
Unrealized holding gain (loss) arising during period on: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale investments |  | $ | (137 | ) |  | $ | 34 |  |  | $ | (103 | ) |  | $ | (490 | ) |  | $ | 120 |  |  | $ | (370 | )
Other comprehensive income (loss), net |  | $ | (137 | ) |  | $ | 34 |  |  | $ | (103 | ) |  | $ | (490 | ) |  | $ | 120 |  |  | $ | (370 | )
|  | Nine Months Ended June 30,
|  | 2023 |  | 2022
|  |  |  | Tax |  | Net of |  |  |  | Tax |  | Net of
|  | Before Tax |  | (Benefit) |  | Tax |  | Before Tax |  | (Benefit) |  | Tax
|  | Amount |  | Expense |  | Amount |  | Amount |  | Expense |  | Amount
|  | (In thousands)
Unrealized holding gain (loss) arising during period on: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-sale investments |  | $ | 247 |  |  | $ | (61 | ) |  | $ | 186 |  |  | $ | (1,285 | ) |  | $ | 316 |  |  | $ | (969 | )
Other comprehensive income (loss), net |  | $ | 247 |  |  | $ | (61 | ) |  | $ | 186 |  |  | $ | (1,285 | ) |  | $ | 316 |  |  | $ | (969 | )

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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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