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Note 16 - Segment and Related Information - Long-lived Assets by Geographic Area (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Total long-lived assets [1] $ 29,972 $ 37,459
UNITED STATES | Continuing Operations [Member]    
Total long-lived assets 26,051 31,512
GERMANY | Continuing Operations [Member]    
Total long-lived assets 2,432 3,501
Rest of the World [Member] | Continuing Operations [Member]    
Total long-lived assets $ 1,489 $ 2,446
[1] consists of operating lease right-of-use assets, property, plant and equipment, net and amortizable intangible assets, net.