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Note 8 - Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Balance as of September 30, 2022			$ 10,118
Balance as of September 30, 2022			10,505
Currency translation			228
Amortization	$ (526)	$ (541)	(1,058)	$ (1,083)
Balance as of March 31, 2023	10,346		10,346
Currency translation			36
Balance as of March 31, 2023	9,483		9,483
Hardware [Member]
Balance as of September 30, 2022			0
Balance as of September 30, 2022			21
Currency translation			0
Amortization			(2)
Balance as of March 31, 2023	0		0
Currency translation			0
Balance as of March 31, 2023	19		19
Software [Member]
Balance as of September 30, 2022			10,118
Balance as of September 30, 2022			10,484
Currency translation			228
Amortization			(1,056)
Balance as of March 31, 2023	10,346		10,346
Currency translation			36
Balance as of March 31, 2023	$ 9,464		$ 9,464

X

- 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.

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Amount of foreign currency translation gain (loss) which increases (decreases) assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after 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.

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