Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Schedule of Outstanding Series C Preferred Stock Warrants (Detail)

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Stockholders' Equity - Schedule of Outstanding Series C Preferred Stock Warrants (Detail) - Series C Warrants [Member]
Sep. 30, 2021
$ / shares
Issuance of Preferred Series C-1 Agent Warrants [Member]  
Warrants exercise price $ 1.16
Issuance of Preferred Series C-2 Agent Warrants [Member]  
Warrants exercise price 1.21
Issuance of Preferred Series C-3 Agent Warrants [Member]  
Warrants exercise price $ 1.15