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Line of Credit (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Jul. 01, 2016
Lineof Credit Disclosure [Abstract]        
Line of credit       $ 84
Bearing interest rate       8.75%
Security against line of credit $84 $84    
Indebted amount $ 0 $ 84 $ 0