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FAIR VALUE MEASUREMENT (Tables)
 9 Months Ended
Jun. 30, 2025
Fair Value Disclosures [Abstract]  
Schedule of Fair Value of Investments Measured on Recurring Basis
The following tables represent the fair value hierarchy of the Company’s investments as of June 30, 2025 and September 30, 2024, respectively (amounts in thousands):
June 30, 2025:BalanceQuoted Prices in Active Markets (Level 1)Significant Other Observable Inputs (Level 2)Significant Unobservable Inputs (Level 3)
Assets:
    
Short-term investments:    
Commercial paper$17,274 $— $17,274 $— 
U.S. Government and agency securities, short-term1,488 — 1,488 — 
Corporate debt securities21,185 — 21,185 — 
Total short-term investments at fair value39,947 — 39,947 — 
Long-term investments:
U.S. Government and agency securities499 — 499 — 
Corporate debt securities7,805 — 7,805 — 
Total long-term investments at fair value8,304 — 8,304 — 
Total assets at fair value$48,251 $— $48,251 $— 

September 30, 2024:BalanceQuoted Prices in Active Markets (Level 1)Significant Other Observable Inputs (Level 2)Significant Unobservable Inputs (Level 3)
Assets:
    
Short-term investments:    
U.S. Treasury$3,836 $— $3,836 $— 
Commercial paper15,984 — 15,984 — 
Corporate debt securities17,064 — 17,064 — 
Total short-term investments at fair value36,884 — 36,884 — 
Long-term investments:
Corporate debt securities11,410 — 11,410 — 
Total long-term investments at fair value11,410 — 11,410 — 
Total assets at fair value$48,294 $— $48,294 $—