Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting and Geographic Information - Additional Information (Details)

v3.10.0.1
Segment Reporting and Geographic Information - Additional Information (Details)
3 Months Ended 6 Months Ended
Dec. 31, 2018
customer
Dec. 31, 2017
customer
Dec. 31, 2018
customer
segment
Dec. 31, 2017
customer
Jun. 30, 2018
customer
Segment Reporting Information          
Number of reportable segments | segment     1    
Number of customers with significant revenue 2 1 1 1  
Segment percent of total revenues 100.00% 100.00% 100.00% 100.00%  
Number of customers with significant accounts receivable balance 3   3   3
Customer One          
Segment Reporting Information          
Segment percent of total revenues 14.00% 17.00% 14.00% 22.00%  
Customer Two          
Segment Reporting Information          
Segment percent of total revenues 13.00%