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Note 12 - Restructuring Charges (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Restructuring and Related Costs [Table Text Block] |
|  | Total Restructuring Charge |  |  | Costs Incurred in 2016 |  |  | Costs Incurred in 2017 |  |  | Balance at Dec. 31, 2017 |
|  | (in thousands) |
Workforce Reduction |  | $ | 10,652 |  |  | $ | 1,451 |  |  | $ | 6,633 |  |  | $ | 2,568 |
Asset Impairment |  |  | 11,319 |  |  |  | 8,019 |  |  |  | 3,300 |  |  |  | 0 |
Lease Exit Costs |  |  | 5,116 |  |  |  | 27 |  |  |  | 5,089 |  |  |  | 0 |

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