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Note 16 - Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Foreign currency translation adjustments |  |  | Unrealized gain (loss) on available-for-sale securities |  |  | Total |
|  | $ |  |  | $ |  |  | $ |
December 31, 2021 |  |  | (528 | ) |  |  | 5 |  |  |  | (523 | )
Current period other comprehensive income (loss) |  |  | 964 |  |  |  | (5 | ) |  |  | 959 |
December 31, 2022 |  |  | 436 |  |  |  | - |  |  |  | 436 |
Current period other comprehensive income (loss) |  |  | 472 |  |  |  | - |  |  |  | 458 |
December 31, 2023 |  |  | 908 |  |  |  | - |  |  |  | 894 |

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