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Note 6 - Property and Equipment, Net (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Depreciation, Total $ 2,887 $ 3,190 $ 3,184
Impairment, Long-Lived Asset, Held-for-Use 1,491 709  
Continuing Operations [Member]      
Depreciation, Total $ 2,730 $ 2,960