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Note 8 - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Mar. 31, 2023	Sep. 30, 2022	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Goodwill, Gross	$ 10,346	$ 10,118		$ 10,346
Amortization of Intangible Assets	$ 526		$ 541	1,058	$ 1,083
Genasys Spain [Member]
Goodwill and Intangible Assets, Foreign Currency Translation Gain (Loss)				$ 264
Software [Member]
Goodwill, Impairment Loss		$ 13,162

X

- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) goodwill and intangible assets.

+ References

No definition available.

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- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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- Definition

Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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