Segment Information - Schedule of Total Long-Lived Assets by Geographical Location (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Long-lived assets	$ 17,634	$ 17,843
United States
Segment Reporting Information [Line Items]
Long-lived assets	17,261	17,358
Rest of the world
Segment Reporting Information [Line Items]
Long-lived assets	$ 373	$ 485

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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