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Note 18 - Segment Reporting (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Income from Operations by Geographic Area [Table Text Block] |
|  | Year Ended December 31, |
(in thousands) |  | 2021 |  |  | 2020 |  |  | 2019 |
Income from Operations: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 98,001 |  |  | $ | 98,762 |  |  | $ | 108,594 |
Europe |  |  | 730 |  |  |  | 11,707 |  |  |  | 15,077 |
Corporate Unallocated and Japan |  |  | (58,389 | ) |  |  | (50,633 | ) |  |  | (43,815 | )
Total income from operations |  | $ | 40,342 |  |  | $ | 59,836 |  |  | $ | 79,856 |
Long-lived Assets by Geographic Areas [Table Text Block] |
|  | December 31, |  |  | December 31, |  |  | December 31, |
(in thousands) |  | 2021 |  |  | 2020 |  |  | 2019 |
Long-lived assets: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 215,701 |  |  | $ | 215,721 |  |  | $ | 210,171 |
Europe |  |  | 59,388 |  |  |  | 59,388 |  |  |  | 45,019 |
Japan |  |  | 5,257 |  |  |  | 7,557 |  |  |  | 8,522 |
Total long-lived assets |  | $ | 280,346 |  |  | $ | 282,666 |  |  | $ | 263,712 |
Expenditures for Additions to Long-lived Assets by Geographic Region [Table Text Block] |
|  | Year Ended December 31, |
(in thousands) |  | 2021 |  |  | 2020 |  |  | 2019 |
Expenditures for additions to long-lived assets: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 26,698 |  |  | $ | 29,984 |  |  | $ | 45,123 |
Europe |  |  | 7,378 |  |  |  | 16,574 |  |  |  | 14,743 |
Japan |  |  | 133 |  |  |  | 452 |  |  |  | 2,364 |
Total expenditures for additions to long-lived assets |  | $ | 34,209 |  |  | $ | 47,010 |  |  | $ | 62,230 |
Depreciation and Amortization by Geographic Region [Table Text Block] |
|  | Year Ended December 31, |
(in thousands) |  | 2021 |  |  | 2020 |  |  | 2019 |
Depreciation and Amortization: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 31,642 |  |  | $ | 25,744 |  |  | $ | 24,767 |
Europe |  |  | 7,101 |  |  |  | 5,024 |  |  |  | 4,746 |
Japan |  |  | 1,745 |  |  |  | 1,826 |  |  |  | 1,351 |
Total depreciation and amortization |  | $ | 40,488 |  |  | $ | 32,594 |  |  | $ | 30,864 |
Operating Segments [Member] |
Notes Tables |
Revenue from External Customers by Geographic Areas [Table Text Block] |
|  | Year Ended December 31, |
(in thousands) |  | 2021 |  |  | 2020 |  |  | 2019 |
Revenue: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 384,458 |  |  | $ | 345,708 |  |  | $ | 360,205 |
Europe |  |  | 90,399 |  |  |  | 74,796 |  |  |  | 82,805 |
Japan |  |  | 13,241 |  |  |  | 13,891 |  |  |  | 15,718 |
Total revenue |  | $ | 488,098 |  |  | $ | 434,395 |  |  | $ | 458,728 |

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