INCOME TAXES - RESERVE FOR UNCERTAIN TAX BENEFITS (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 4,993	$ 4,978
Additions based on tax positions related to the current fiscal period	0	15
Ending balance	$ 4,993	$ 4,993