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v3.21.2

Stockholders' Equity - Schedule of Warrant Activity (Detail) | 9 Months Ended
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Sep. 30, 2021 shares
Common Stock Warrants [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 337,822
Issued | 807,809
Exercised | 0
Cancelled/Expired | 0
Ending Balance | 1,145,631
Common Stock Warrants [Member] | Registered Direct Warrants, Placement Agent [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 9,581
Issued | 0
Exercised | 0
Cancelled/Expired | 0
Ending Balance | 9,581
Common Stock Warrants [Member] | Private Placement Warrants [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 319,064
Issued | 0
Exercised | 0
Cancelled/Expired | 0
Ending Balance | 319,064
Common Stock Warrants [Member] | Warrants Exchanged for Common Stock [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 0
Issued | 509,117
Exercised | 0
Cancelled/Expired | 0
Ending Balance | 509,117
Common Stock Warrants [Member] | Private Placement Warrants, Placement Agent [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 9,177
Issued | 0
Exercised | 0
Cancelled/Expired | 0
Ending Balance | 9,177
Common Stock Warrants [Member] | Warrants Exchanged for Preferred Stock Warrants [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 0
Issued | 298,692
Exercised | 0
Cancelled/Expired | 0
Ending Balance | 298,692
Preferred Stock Warrants [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 55,583.875
Assumed and replaced | 0
Exercised | 0
Cancelled/Exchanged | (5,376.456)
Ending Balance | 50,207.419
Preferred Stock Warrants [Member] | Warrants Assumed and Replaced in Acquisition [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 55,583.875
Assumed and replaced | 0
Exercised | 0
Cancelled/Exchanged | (5,376.456)
Ending Balance | 50,207.419

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