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Note 10 - Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2019
Notes Tables |
Schedule of Intangible Assets and Goodwill [Table Text Block] |
|  | 201 9 |  |  | 201 8 |
|  | Historical Cost |  |  | Accumulated Amortization |  |  | Historical Cost |  |  | Accumulated Amortization |
Finite-lived intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer relationships |  | $ | 7,832 |  |  | $ | 6,301 |  |  | $ | 7,833 |  |  | $ | 5,514 |
Technology and drawings |  |  | 6,749 |  |  |  | 3,712 |  |  |  | 6,752 |  |  |  | 3,417 |
Other intangibles |  |  | 2,292 |  |  |  | 1,151 |  |  |  | 1,838 |  |  |  | 1,172 |
Total finite-lived intangible assets |  |  | 16,873 |  |  |  | 11,164 |  |  |  | 16,423 |  |  |  | 10,103 |
Goodwill |  |  | 27,215 |  |  |  | - |  |  |  | 27,234 |  |  |  | - |
Trade names and trademarks |  |  | 2,072 |  |  |  | - |  |  |  | 2,631 |  |  |  | - |
Total |  | $ | 46,160 |  |  | $ | 11,164 |  |  | $ | 46,288 |  |  | $ | 10,103 |
Schedule of Goodwill [Table Text Block] |
|  | Goodwill |
Balance at December 31, 2017 |  |  | 27,551 |
Acquisitions |  |  | - |
Impairment |  |  | - |
Foreign currency |  |  | (317 | )
Balance at December 31, 2018 |  |  | 27,234 |
Acquisitions |  |  | - |
Impairment |  |  | - |
Foreign currency |  |  | (19 | )
Balance at December 31, 201 9 |  | $ | 27,215 |

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