Annual report pursuant to Section 13 and 15(d)

Note 12 - Segment Information - Long-lived Assets (Details)

v3.20.4
Note 12 - Segment Information - Long-lived Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Total long-lived assets $ 539 $ 735
UNITED STATES    
Total long-lived assets 227 379
UNITED KINGDOM    
Total long-lived assets 146 135
CHINA    
Total long-lived assets 47 57
Other Foreign Countries [Member]    
Total long-lived assets $ 119 $ 164