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Stockholders' Equity - Schedule of Warrant Activity (Detail)
 6 Months Ended
Jun. 30, 2021
shares
Common Stock Warrants [Member]  
Class Of Warrant Or Right [Line Items]  
Beginning Balance 337,822
Issued 509,117
Exercised 0
Cancelled/Expired 0
Ending Balance 846,939
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
Preferred Stock Warrants [Member]  
Class Of Warrant Or Right [Line Items]  
Beginning Balance 55,583.875
Assumed and replaced 0
Exercised 0
Cancelled/Expired 0
Ending Balance 55,583.875
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/Expired 0
Ending Balance 55,583.875