Quarterly report pursuant to Section 13 or 15(d)

Stockholders' equity - Summary of share-based compensation expense (Detail)

v3.22.4
Stockholders' equity - Summary of share-based compensation expense (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]        
Share-based compensation expense $ (48) $ 239 $ 254 $ 510
Research and development [Member]        
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]        
Share-based compensation expense 30 80 60 161
General and administrative [Member]        
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]        
Share-based compensation expense $ (78) $ 159 $ 194 $ 349