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Note 4 - Goodwill and Intangible Assets - Change in Carrying Amount of Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Carrying amount $ 57,689 $ 58,590
Effect of change in currency translation (1,429) (901)
Carrying amount $ 56,260 $ 57,689