Quarterly report pursuant to Section 13 or 15(d)

Leases - Additional information (Detail)

v3.21.2
Leases - Additional information (Detail) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Aug. 31, 2021
Sep. 30, 2021
Sep. 30, 2020
Operating lease has a remaining lease term   3 years 8 months 15 days  
Operating lease discount rate   4.67%  
Operating lease expense   $ 100 $ 100
Opearting lease month of maturity revised 2025-06    
General and Administrative Expense [Member]      
Operating lease expense   7 7
Research and Development Expense [Member]      
Operating lease expense   $ 45 $ 45