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Accounts Receivable (Details) - Schedule of allowance for doubtful accounts - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Schedule of allowance for doubtful accounts [Abstract]        
Balance at beginning of the period $ 4,743 $ 4,534 $ 5,047 $ 5,537
Charge to expenses 457 2 261 (861)
Write off (415) (546)
Exchange difference 11 173 34 33
Balance at end of the period $ 4,796 $ 4,709 $ 4,796 $ 4,709