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INVESTMENTS - Schedule of Investments by Type of Security (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Sep. 30, 2025
Debt Securities, Available-for-sale [Line Items]
Cost	$ 16,630	$ 42,257
Gross Unrealized Gains	36	68
Gross Unrealized Losses	0	(3)
Fair Market Value	16,666	42,322
Short-Term | U.S. Government and agency securities, short-term
Debt Securities, Available-for-sale [Line Items]
Cost		998
Gross Unrealized Gains		0
Gross Unrealized Losses		0
Fair Market Value		998
Short-Term | Commercial paper, short-term
Debt Securities, Available-for-sale [Line Items]
Cost	998	19,575
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	(1)
Fair Market Value	998	19,575
Short-Term | Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Cost	13,930	18,253
Gross Unrealized Gains	25	34
Gross Unrealized Losses	0	(2)
Fair Market Value	13,955	18,285
Long Term | Corporate debt securities
Debt Securities, Available-for-sale [Line Items]
Cost	1,702	3,431
Gross Unrealized Gains	11	33
Gross Unrealized Losses	0	0
Fair Market Value	$ 1,713	$ 3,464

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

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