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REVENUE RECOGNITION - Revenue from External Customers by Geographic Areas (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Revenue, Major Customer [Line Items]
Revenue	$ 37,254	$ 36,917
United States
Revenue, Major Customer [Line Items]
Revenue	25,618	28,429
United Kingdom
Revenue, Major Customer [Line Items]
Revenue	5,184	3,846
All other countries
Revenue, Major Customer [Line Items]
Revenue	$ 6,452	$ 4,642

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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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