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Note 3 - Business Combinations - Acquired Intangible Assets (Details) - SAVSU [Member] $ in Thousands	Aug. 08, 2019 USD ($)
Identifiable intangible assets	$ 12,400
Customer Relationships [Member]
Identifiable intangible assets	$ 80
Identifiable intangible assets useful life (Year)	6 years
Trade Names [Member]
Identifiable intangible assets	$ 1,320
Identifiable intangible assets useful life (Year)	9 years
Developed Technology Rights [Member]
Identifiable intangible assets	$ 11,000
Developed Technology Rights [Member] | Minimum [Member]
Identifiable intangible assets useful life (Year)	7 years
Developed Technology Rights [Member] | Maximum [Member]
Identifiable intangible assets useful life (Year)	8 years

X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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