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OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Components of Other Comprehensive Income (Loss) and the Related Income Tax Effects (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Before Tax Amount [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Available-for-sale investments		$ (61)	$ 263	$ 69	$ 26
Other comprehensive (loss) income, net		(61)	263	69	26
Tax Expense [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Available-for-sale investments	[1]	15	(65)	(17)	(6)
Other comprehensive (loss) income, net	[1]	15	(65)	(17)	(6)
Net of Tax Amount [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Available-for-sale investments		(46)	198	52	20
Other comprehensive (loss) income, net		$ (46)	$ 198	$ 52	$ 20
[1] Related income tax expense or benefit calculated using an income tax rate approximating 25% for available-for-sale investments

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Amount before tax, after reclassification adjustments of other comprehensive income (loss).

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