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BALANCE SHEET DETAILS - Schedule of Other Long-term Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Other long-term liabilities    
Non-current income tax payable $ 1,349 $ 1,327
Other long-term liabilities   1,170
Total other long-term liabilities $ 1,349 $ 2,497