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Note 4 - Goodwill and Intangible Assets - Changes in Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Balance $ 21,605 $ 21,448
Goodwill, Purchase Accounting Adjustments   451
Impact of foreign currency translation adjustments 123 (294)
Balance $ 21,728 $ 21,605