Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2024
Goodwill [Line Items]
Goodwill, Gross	$ 13,165		$ 13,329
Goodwill, acquired during period	0
Impairment of goodwill	0
Amortization of Intangible Assets	618	$ 619
Genasys Spain [Member]
Goodwill [Line Items]
Goodwill and Intangible Assets, Foreign Currency Translation Gain (Loss)	$ 167
Evertel Technologies, LLC [Member]
Goodwill [Line Items]
Goodwill, acquired during period		$ 2,772