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Note 19 - Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] |
|  |  | Carrying value at |  |  | Fair value measurements
|  |  | December 31, 2017 |  |  |  | Level 1 |  |  |  | Level 2 |  |  |  | Level 3 |
Contingent consideration liability |  | $ | 50,300 |  |  | $ | - |  |  | $ | - |  |  | $ | 50,300 |
Interest rate swap asset |  |  | 751 |  |  |  | - |  |  |  | 751 |  |  |  | - |
Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block] |
|  |  | 2017 |  |  |  | 2016 |
Balance, January 1 |  | $ | 32,266 |  |  | $ | 29,119 |
Amounts recognized on acquisitions |  |  | 21,477 |  |  |  | 12,056 |
Fair value adjustments (note 4) |  |  | 1,054 |  |  |  | (4,591 | )
Resolved and settled in cash |  |  | (6,169 | ) |  |  | (1,434 | )
Other |  |  | 1,672 |  |  |  | (2,884 | )
Balance, December 31 |  | $ | 50,300 |  |  | $ | 32,266 |
Less: current portion |  | $ | 18,657 |  |  | $ | 4,884 |
Non-current portion |  | $ | 31,643 |  |  | $ | 27,382 |
Fair Value, by Balance Sheet Grouping [Table Text Block] |
|  | 2017 |  | 2016
|  |  | Carrying amount |  |  |  | Fair value |  |  |  | Carrying amount |  |  |  | Fair value |
Other receivables |  | $ | 10,136 |  |  | $ | 10,136 |  |  | $ | 10,203 |  |  | $ | 10,203 |
Advisor loans receivable |  |  | 44,978 |  |  |  | 44,978 |  |  |  | 28,477 |  |  |  | 28,477 |
Long-term debt (Non-current) |  |  | 247,467 |  |  |  | 247,467 |  |  |  | 260,537 |  |  |  | 260,537 |

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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 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13476-108611 Reference 2: 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=66048111&loc=d3e19207-110258 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=77997519&loc=d3e13467-108611 Reference 4: 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=75026489&loc=d3e13220-108610 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=75031198&loc=d3e14172-108612 Reference 6: 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=77997519&loc=d3e13433-108611 + Details
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- Definition Tabular disclosure of contingent payment arrangements including the terms that will result in payment and the accounting treatment that will be followed if such contingencies occur, including the potential impact on earnings per share if contingencies are to be settled in common stock of the entity. The description also may include the period over which amounts are expected to be paid, and changes in the amount since the previous reporting period. This also includes contingent options and commitments. + References No definition available. + 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=66048111&loc=d3e19190-110258 + Details
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