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Other Non-Current Liabilities (Details) - Schedule of other non-current liabilities - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Schedule of other non-current liabilities [Abstract]      
Deferred subsidy income – non-current $ 2,334 $ 1,221 $ 1,389
Payable to exiting Investors   94,316 114,870
Product warranty 33,177 15,060 14,693
Total $ 35,511 $ 110,597 $ 130,952