XML 78 R47.htm IDEA: XBRL DOCUMENT v3.22.1
Note 2 - Summary of Significant Accounting Policies - Property and Equipment by Geographical Location (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Property and Equipment $ 1,422 $ 184
CHINA    
Property and Equipment 98 45
UNITED STATES    
Property and Equipment $ 1,324 $ 139