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Note 7 - Inventories (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Inventory, Current [Table Text Block] |
|  | 2020 |  |  | 2019 |
Raw materials |  | $ | 5,371 |  |  | $ | 5,369 |
Work in process |  |  | 1,085 |  |  |  | 949 |
Inventory consigned to others |  |  | 45 |  |  |  | 54 |
Finished goods |  |  | 975 |  |  |  | 810 |
Total inventories |  | $ | 7,476 |  |  | $ | 7,182 |

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