Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Schedule of Stock Option Expense (Detail)

v3.20.2
Stockholders' Equity - Schedule of Stock Option Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total compensation expense $ 405 $ 51
Research and Development [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total compensation expense 91 8
General and Administrative [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total compensation expense $ 314 $ 43