v3.22.2.2
Note 5 - Cash, Cash Equivalents and Restricted Cash (Details Textual) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Restricted Cash and Cash Equivalents, Current, Total $ 8,307 $ 6,480
CHINA    
Certificates of Deposit, at Carrying Value 800 2,400
Bankers Acceptance [Member]    
Restricted Cash and Cash Equivalents, Current, Total 6,400 3,000
Guarantee Deposits for Customs Duties [Member]    
Restricted Cash and Cash Equivalents, Current, Total $ 11,200 $ 1,000