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Note 5 - Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 30, 2021
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Foreign currency translation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  | $ | (1,430 | ) |  | $ | (1,857 | ) |  | $ | (1,370 | ) |  | $ | (1,778 | )
Other comprehensive income (loss): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign currency translation adjustments (1) |  |  | (153 | ) |  |  | 268 |  |  |  | (213 | ) |  |  | 189 |
Total accumulated other comprehensive loss |  | $ | (1,583 | ) |  | $ | (1,589 | ) |  | $ | (1,583 | ) |  | $ | (1,589 | )

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