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BALANCE SHEET DETAILS - Schedule of Prepaid and Other Current Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Prepaid and other current assets    
Prepaid tax $ 1,295 $ 1,736
Advance to suppliers 7 15
Other receivables 796 1,054
Prepaid and others 2,713 2,303
Total Prepaid and other current assets $ 4,811 $ 5,108