Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

General (Details)

v3.22.1
General (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Accounting Policies [Abstract]      
Number of ordinary shares represent by each ADS (in Shares) 30    
Net losses $ (12,615) $ (14,443) $ (12,625)
Cash flows from operating activities $ (9,858)