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Share-Based Compensation - Summary of Share-Based Compensation Expenses by Functional Line Item (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Share-based compensation expenses    
Share-based compensation expense $ 1,700 $ 3,212
Cost of revenue    
Share-based compensation expenses    
Share-based compensation expense 374 431
Research and development    
Share-based compensation expenses    
Share-based compensation expense 372 491
Selling and marketing    
Share-based compensation expenses    
Share-based compensation expense (24) 535
General and administrative    
Share-based compensation expenses    
Share-based compensation expense $ 978 $ 1,755