Goodwill and Other Intangible Assets - Schedule of Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Goodwill And Other Intangible Assets [Line Items]
Goodwill	$ 5,072	$ 4,337
Total other intangible assets	12,583	11,918
Accumulated amortization	(5,333)	(3,587)
Other intangible assets, net	$ 7,250	8,331
Weighted-Average Remaining Useful Lives (in years)	8 years 4 months 24 days
Developed Technology
Goodwill And Other Intangible Assets [Line Items]
Total other intangible assets	$ 6,475	5,918
Weighted-Average Remaining Useful Lives (in years)	15 years 2 months 12 days
Customer Relationships
Goodwill And Other Intangible Assets [Line Items]
Total other intangible assets	$ 3,900	3,900
Weighted-Average Remaining Useful Lives (in years)	10 months 24 days
Trade Names
Goodwill And Other Intangible Assets [Line Items]
Total other intangible assets	$ 2,022	1,930
Weighted-Average Remaining Useful Lives (in years)	2 years
Non-compete Agreements
Goodwill And Other Intangible Assets [Line Items]
Total other intangible assets	$ 186	$ 170
Weighted-Average Remaining Useful Lives (in years)	1 year