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Balance Sheet Components - Schedule of Expected Amortization Expenses for Intangible Assets (Details) - USD ($)
$ in Thousands
Apr. 30, 2018
Jan. 31, 2018
[1]
Balance Sheet Components Disclosure [Abstract]    
Remainder of 2019 $ 1,128  
2020 1,504  
2021 1,504  
2022 545  
Intangible assets, net $ 4,681 $ 5,057
[1] *Prior period information has been adjusted to reflect the adoption impact of Accounting Standards Codification 606, Revenue from Contracts with Customers (ASC 606), which we adopted on February 1, 2018.