Note 9 - Fair Value Measurements - Contingent Consideration Liabilities, Recurring Basis (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Balance | $ 0 | $ 10,549 | |
| Initial valuation upon acquistion | 30,095 | ||
| Payments | (7,496) | ||
| Gain in general and administrative expense | (2,469) | (16,314) | |
| Foreign exchange revaluation | (584) | (3,232) | |
| Balance | $ 0 | $ 0 | $ 10,549 |