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Note 16 - Segment and Related Information - Revenue by Geographic Destination (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Total revenues $ 113,335 $ 118,904
UNITED STATES    
Total revenues 49,912 49,831
Europe [Member]    
Total revenues 30,687 35,767
Greater China [Member]    
Total revenues 16,393 13,496
Rest of the World [Member]    
Total revenues $ 16,343 $ 19,810