XML 140 R127.htm IDEA: XBRL DOCUMENT v3.21.2
Accounts Receivable (Details) - Schedule of allowance for doubtful accounts - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Schedule of allowance for doubtful accounts [Abstract]        
Balance at beginning of the period $ 4,416 $ 4,524 $ 5,047 $ 5,537
Charge to expenses 318 (196) (863)
Write off (28) (131)
Exchange difference 37 10 23 (140)
Balance at end of the period $ 4,743 $ 4,534 $ 4,743 $ 4,534