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BALANCE SHEET DETAILS - Schedule of Prepaid and Other Current Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Prepaid and other current assets    
Prepaid taxes $ 2,340 $ 3,468
Advance to suppliers 4 982
Other receivable 1,361 794
Other 1,819 1,532
Total Prepaid and other current assets $ 5,524 $ 6,776