Note 19 - Financial Instruments (Details) - Change in Fair Value of Contingent Consideration Liability - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Business Acquisition, Contingent Consideration [Line Items]
Fair value adjustments (note 5)	$ (1,421)	$ (19,785)
Balance, December 31, 2015	29,119
Less: current portion	1,552	6,385
Non-current portion	27,567	14,656
Fair Value, Inputs, Level 3 [Member]
Business Acquisition, Contingent Consideration [Line Items]
Balance, December 31, 2014	21,041
Amounts recognized on acquisitions	14,566
Fair value adjustments (note 5)	383
Resolved and settled in cash	(6,083)
Other	(788)
Balance, December 31, 2015	29,119	$ 21,041
Less: current portion	1,552
Non-current portion	$ 27,567

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

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph b
-URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-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

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

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