Income Taxes - Schedule of Components of (Benefit) Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Current:
Foreign	$ (327)	$ 711	$ 1,999
Foreign withholding taxes	159	255	292
Domestic state	81	77	(300)
Total current	(87)	1,043	1,991
Deferred:
Domestic Federal	(2,207)	(39)
State	(284)
Foreign	(22)	414	(65)
Total deferred	(2,513)	375	(65)
Total (benefit) provision	$ (2,600)	$ 1,418	$ 1,926