Note 3 - Business Combinations - Acquired Identifiable Intangible Assets (Details) - Acquisition of Lane Venture [Member] $ in Thousands	Dec. 21, 2017 USD ($)
Intangible assets	$ 7,360
Customer Relationships [Member]
Intangible assets	$ 512
Useful Life (Year)	9 years
Trade Names [Member]
Intangible assets	$ 6,848

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

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=84161108&loc=d3e4845-128472

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