Note 3 - Business Combinations - Intangible Assets Acquired (Details) - Parcus Medical [Member] $ in Millions	Jan. 24, 2020 USD ($)
Intangible assets	$ 44.0
Developed Technology Rights [Member]
Intangible assets	41.1
Trade Names [Member]
Intangible assets	1.8
Customer Relationships [Member]
Intangible assets	$ 1.1

The amount of identifiable intangible assets recognized as of the acquisition date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI https://asc.fasb.org/extlink&oid=123455525&loc=d3e2207-128464

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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