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Note 6 - Goodwill and Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2021
Notes Tables |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | June 30, 2021 |  |  | December 31, 2020 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Total |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Total |
Customer Relationships |  | $ | 28,300 |  |  | $ | (27,509 | ) |  | $ | 791 |  |  | $ | 28,300 |  |  | $ | (26,324 | ) |  | $ | 1,976 |
Intellectual Property |  |  | 18,135 |  |  |  | (9,017 | ) |  |  | 9,118 |  |  |  | 13,860 |  |  |  | (7,939 | ) |  |  | 5,921 |
Total intangible assets |  | $ | 46,435 |  |  | $ | (36,526 | ) |  | $ | 9,909 |  |  | $ | 42,160 |  |  | $ | (34,263 | ) |  | $ | 7,897 |

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