Note 9 - Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Sep. 30, 2020
Intangible assets, gross carrying amount	$ 4,855	$ 1,829
Accumulated amortization	(1,112)	(886)
Intangible assets, net	3,743	943
Developed Technology Rights [Member]
Intangible assets, gross carrying amount	3,297	655
Customer Relationships [Member]
Intangible assets, gross carrying amount	990	627
Trade Names [Member]
Intangible assets, gross carrying amount	238	228
Noncompete Agreements [Member]
Intangible assets, gross carrying amount	258	247
Patents [Member]
Intangible assets, gross carrying amount	$ 72	$ 72

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

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-Publisher FASB
-Name Accounting Standards Codification
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
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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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