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Note 4 - Business Combination - Estimate Fair Value of the Identifiable Assets Acquired and Estimated Useful Lives (Details) - Assets Acquisition of Amika Mobile Corporation [Member] - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2021	Oct. 02, 2020
Fair value	$ 2,820	$ 2,820
Developed Technology Rights [Member]
Fair value	$ 2,500
Useful lives (Year)	7 years
Customer Relationships [Member]
Fair value	$ 320
Useful lives (Year)	7 years

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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X

- Definition

Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121647850&loc=d3e4845-128472

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