INCOME TAXES - Schedule of Significant Components of Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Deferred tax assets:
Stock-based compensation	$ 2,664	$ 2,866
Net operating loss carryforwards	11,552	12,437
Research credit carryforwards	5,311	5,398
Lease liability	717	1,235
Accrued bonus	1,771	0
Capitalized research and development costs	12,596	8,408
Other, net	921	682
Total deferred assets	35,532	31,026
Deferred tax liabilities:
Right of use asset	(633)	(1,141)
Intangibles	(9,860)	(13,414)
Total deferred liabilities	(10,493)	(14,555)
Valuation allowance for net deferred tax assets	0	(1,215)
Net deferred tax asset	$ 25,039	$ 15,256