Note 5 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Indefinite-lived intangible assets	$ 4,346	$ 4,346
	33,124	33,124
Accumulated amortization	(12,574)	(11,816)
	20,550	21,308
Trademarks [Member]
Intangible assets	8,915	8,915
Customer Relationships [Member]
Intangible assets	19,110	19,110
Other Intangible Assets [Member]
Intangible assets	$ 753	$ 753

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

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-Name Accounting Standards Codification
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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Publisher FASB
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Amount before accumulated amortization of intangible assets, excluding goodwill.

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