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Note 7 - Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2020
Notes Tables |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Foreign Currency Items |  |  | Total Accumulated Other Comprehensive Income |
Beginning balance as of January 1, 2020 |  | $ | (5,348,812 | ) |  | $ | (5,348,812 | )
Current period change, net of tax |  |  | (1,363,503) |  |  |  | (1,363,503 | )
Ending Balance as of March 31, 2020 |  |  | (6,712,315 | ) |  |  | (6,712,315) |

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