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Note 22 - Segment and Related Information - Long-lived Assets by Geographic Area (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Total long-lived assets [1] $ 42,047 $ 50,430
UNITED STATES | Continuing Operations [Member]    
Total long-lived assets 35,409 42,222
GERMANY | Continuing Operations [Member]    
Total long-lived assets 4,142 5,022
UNITED KINGDOM | Continuing Operations [Member]    
Total long-lived assets 320 585
Rest of the World [Member] | Continuing Operations [Member]    
Total long-lived assets $ 2,176 $ 2,601
[1] Total long-lived assets consist of property, plant and equipment, net and amortizable intangible assets, net.