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Note 15 - Financial Instruments - Change in Fair Value of Contingent Consideration Liability (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | $ (122) | $ (579)
Balance, December 31, 2016 | 10,442 |
Less: current portion | 2,882 | 2,206
Non-current portion | 7,560 | 1,110
Fair Value, Inputs, Level 3 [Member] |  |
Balance, December 31, 2015 | 3,316 |
Amounts recognized on acquisitions | 9,998 |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | (621) | (54)
Resolved and settled in cash | (2,490) |
Other | 239 |
Balance, December 31, 2016 | 10,442 | $ 3,316
Less: current portion | 2,882 |
Non-current portion | $ 7,560 |

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- Definition Represents the business combinations resolved and settled in cash. + References No definition available. + Details
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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 + Details
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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 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: 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 3: 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 + Details
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