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Note 19 - Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2014
Disclosure Text Block Supplement [Abstract] |
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] |
|  | 2014 |
Derivative designated as hedging instrument |  | Balance sheet location |  | Fair Value |
Interest rate swap asset |  | Other assets (non-current) |  | $ | 27 |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] |
| Carrying value at |  | Fair value measurements |
| December 31, 2014 |  |  | Level 1 |  |  | Level 2 |  | Level 3 |
Interest rate swap asset |  | $ | 27 |  |  | $ | - |  |  | $ | 27 |  |  | $ | - |
Contingent consideration liability |  |  | 27,136 |  |  |  | - |  |  |  | - |  |  |  | 27,136 |
Change In Fair Value Of Contingent Consideration Liability [Table Text Block] |
Balance, December 31, 2013 |  | $ | 8,740 |
Amounts recognized on acquisitions |  |  | 17,838 |
Fair value adjustments (note 5) |  |  | 2,371 |
Resolved and settled in cash |  |  | (238) |
Other |  |  | (1,575) |
Balance, December 31, 2014 |  | $ | 27,136 |
Less: current portion |  | $ | 10,971 |
Non-current portion |  | $ | 16,165 |
Fair Value, by Balance Sheet Grouping [Table Text Block] |
| 2014 |  | 2013 |
| Carrying amount |  | Fair value |  | Carrying amount |  | Fair value |
Other receivables |  | $ | 6,845 |  |  | $ | 6,845 |  |  | $ | 7,455 |  |  | $ | 7,455 |
Long-term debt |  |  | 493,348 |  |  |  | 513,128 |  |  |  | 372,794 |  |  |  | 386,952 |

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- Definition Represents the tabular disclosure for the change in fair value of the contingent consideration liability. + References No definition available. + Details
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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13467-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13476-108611 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6957238&loc=d3e14172-108612 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6447952&loc=d3e13220-108610 + Details
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- Definition Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624163-113959 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258 + Details
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