XML 41 R30.htm IDEA: XBRL DOCUMENT v3.21.1
Commitments and Contingencies - Schedule of Future Payments Under Noncancelable Operating Leases (Detail) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Commitments And Contingencies Disclosure [Abstract]    
2021 (remainder of) $ 97  
Total minimum lease payments 97  
Present value of lease liabilities 97  
Less current portion $ (97) $ (144)