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Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Goodwill [Line Items]
Balance as of September 30, 2024			$ 13,329
Acquisitions			0
Currency translation			(72)
Balance as of March 31, 2025	$ 13,257		13,257
Balance as of September 30, 2024			8,506
Acquisitions			0
Amortization	(584)	$ (619)	(1,202)	$ (1,239)
Currency translation			(3)
Balance as of March 31, 2025	7,301		7,301
Hardware [Member]
Goodwill [Line Items]
Balance as of September 30, 2024			0
Acquisitions			0
Currency translation			0
Balance as of March 31, 2025	0		0
Balance as of September 30, 2024			14
Acquisitions			0
Amortization			(1)
Currency translation			0
Balance as of March 31, 2025	13		13
Software [Member]
Goodwill [Line Items]
Balance as of September 30, 2024			13,329
Acquisitions			0
Currency translation			(72)
Balance as of March 31, 2025	13,257		13,257
Balance as of September 30, 2024			8,492
Acquisitions			0
Amortization			(1,201)
Currency translation			(3)
Balance as of March 31, 2025	$ 7,288		$ 7,288