REVENUE CONCENTRATION - Schedule of Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 172,083	$ 172,552	$ 144,804
United States
Disaggregation of Revenue [Line Items]
Revenue	135,344	134,957	113,499
United Kingdom
Disaggregation of Revenue [Line Items]
Revenue	17,607
All other countries
Disaggregation of Revenue [Line Items]
Revenue	$ 19,132	$ 37,595	$ 31,305

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details