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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Schedule Components of Accumulated Other Comprehensive Loss [Abstract]
Available-for-sale investments, net of tax	$ (553)	$ (853)
Defined benefit pension plan, net of tax	30	(63)
Total accumulated other comprehensive loss	$ (523)	$ (916)

X

- Definition

Amount, after tax, of accumulated unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482790/220-10-45-14

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X

- Definition

Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

+ References

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-Topic 715
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-Section 50
-Paragraph 1
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X

- Definition

Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
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No definition available.

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