Quarterly report pursuant to Section 13 or 15(d)

Revenue - Summary of revenue from customers (Detail)

v3.21.1
Revenue - Summary of revenue from customers (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Revenue from External Customer [Line Items]        
Revenues from customers $ 1 $ 28 $ 57 $ 137
Licensing revenue [Member]        
Revenue from External Customer [Line Items]        
Revenues from customers 1 0 57 60
Royalty revenue [Member]        
Revenue from External Customer [Line Items]        
Revenues from customers 0 28 0 73
Service revenue [Member]        
Revenue from External Customer [Line Items]        
Revenues from customers $ 0 $ 0 $ 0 $ 4