Quarterly report pursuant to Section 13 or 15(d)

Capital Structure - Summary of Common Stock Reserved for Future Issuance (Detail)

v3.20.2
Capital Structure - Summary of Common Stock Reserved for Future Issuance (Detail) - shares
Jun. 30, 2020
Dec. 31, 2019
Class of Stock [Line Items]    
Common Stock reserved for future issuance 14,281,207 4,351,873
Two Thousand Fourteen Omnibus IncentivePlan [Member]    
Class of Stock [Line Items]    
Common Stock reserved for future issuance 3,128 101,625
Stock Options [Member]    
Class of Stock [Line Items]    
Common Stock reserved for future issuance 1,917,649 1,216,338
Warrants [Member]    
Class of Stock [Line Items]    
Common Stock reserved for future issuance 12,360,430 3,033,910