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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, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Balance, goodwill			$ 23,834
Currency translation, goodwill			(4)
Balance, goodwill	$ 23,830		23,830
Balance, intangible assets			12,804
Amortization, intangible assets	(541)	$ (169)	(1,083)	$ (352)
Currency translation, intangible assets			14
Balance, intangible assets	11,735		11,735
Hardware [Member]
Balance, goodwill			0
Currency translation, goodwill			0
Balance, goodwill	0		0
Balance, intangible assets			25
Amortization, intangible assets			(2)
Currency translation, intangible assets			0
Balance, intangible assets	23		23
Software [Member]
Balance, goodwill			23,834
Currency translation, goodwill			(4)
Balance, goodwill	23,830		23,830
Balance, intangible assets			12,779
Amortization, intangible assets			(1,081)
Currency translation, intangible assets			14
Balance, intangible assets	$ 11,712		$ 11,712

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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