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Note 5 - Acquisition-Related Items (Tables) | 12 Months Ended
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Dec. 31, 2013
Business Combination Disclosure Acquisition Related Items [Abstract] |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Contingent consideration compensation expense |  | $ | 6,181 |  |  | $ | 5,096 |  |  | $ | 2,819 |
Contingent consideration fair value adjustments |  |  | 1,801 |  |  |  | 3,645 |  |  |  | 969 |
Transaction costs |  |  | 3,336 |  |  |  | 5,032 |  |  |  | 861 |
Reclassification from accumulated other comprehensive loss |  |  | - |  |  |  | 2,553 |  |  |  | - |
Gain on revaluation of previously held equity investment (note 3) |  |  | (820 | ) |  |  | - |  |  |  | - |
|  | $ | 10,498 |  |  | $ | 16,326 |  |  | $ | 4,649 |

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