Note 20 - Financial Instruments - Change in Fair Value of Contingent Consideration Liability (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair value adjustments (note 5)	$ (591)	$ (1,421)	$ (19,785)
Balance	32,266
Less: current portion	4,884	1,552
Non-current portion	27,382	27,567
Fair Value, Inputs, Level 3 [Member]
Balance	29,119
Amounts recognized on acquisitions	12,056
Fair value adjustments (note 5)	(4,591)
Resolved and settled in cash	(1,434)
Other	(2,884)
Balance	32,266	$ 29,119
Less: current portion	4,884
Non-current portion	$ 27,382

The amount recognized on acquisitions.

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- Definition

Represents the business combination contingent consideration arrangements classified as other.

+ References

No definition available.

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Represents the business combinations resolved and settled in cash.

+ References

No definition available.

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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
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-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer.

+ References

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-Publisher FASB
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