Note 9 - Acquisition of Nora - Acquired Intangible Assets (Details) - Nora [Member] - USD ($) $ in Thousands	Sep. 30, 2018	Aug. 07, 2018
Finite lived intangible assets	$ 100,200
Goodwill	183,348	$ 183,348
Developed Technology Rights [Member]
Finite lived intangible assets	38,048
Trademarks and Trade Names [Member]
Finite lived intangible assets	59,880
Order or Production Backlog [Member]
Finite lived intangible assets	$ 2,252

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant