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Note 18 - Segment Reporting - Summary of Amortizable Intangible Assets by Geographic Region (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Amortizable intangible assets	$ 36,972	$ 45,652
CANADA
Amortizable intangible assets	6,553	7,749
UNITED STATES
Amortizable intangible assets	30,421	37,783
GERMANY
Amortizable intangible assets		$ 120

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

+ Details

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Period Type:	instant

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Name:	srt_StatementGeographicalAxis=country_US
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X

- Details

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