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v3.20.2

Stockholders' Equity - Schedule of Warrant Activity (Detail) | 9 Months Ended
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Sep. 30, 2020 shares
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 392,815
Issued | 402,397
Exercised | (427,877)
Cancelled/Expired | 0
Ending Balance | 367,335
Anelixis [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 0
Assumed and replaced | 55,583.875
Exercised | 0
Cancelled/Expired | 0
Ending Balance | 55,583.875
Registered Direct Warrants, Series A [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 191,617
Issued | 0
Exercised | (191,617)
Cancelled/Expired | 0
Ending Balance | 0
Registered Direct Warrants, Series B [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 191,617
Issued | 0
Exercised | (191,617)
Cancelled/Expired | 0
Ending Balance | 0
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
Private Placement Warrants [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 0
Issued | 383,235
Exercised | (44,643)
Cancelled/Expired | 0
Ending Balance | 338,592
Private Placement Warrants, Placement Agent [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 0
Issued | 19,162
Exercised | 0
Cancelled/Expired | 0
Ending Balance | 19,162
Warrants Assumed and Replaced in Acquisition [Member] | Anelixis [Member] |
Class Of Warrant Or Right [Line Items] |
Beginning Balance | 0
Assumed and replaced | 55,583.875
Exercised | 0
Cancelled/Expired | 0
Ending Balance | 55,583.875

X
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