Capital Structure - Summary of Common Stock Reserved for Future Issuance (Detail) - shares	Sep. 30, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Common Stock reserved for future issuance	14,876,155	14,903,919
Two Thousand Fourteen Omnibus Incentive Plan [Member]
Class of Stock [Line Items]
Common Stock reserved for future issuance	45,212	77,631
Two Thousand Twenty One Employment Inducement Plan [Member]
Class of Stock [Line Items]
Common Stock reserved for future issuance	990,000	1,000,000
Stock Options [Member]
Class of Stock [Line Items]
Common Stock reserved for future issuance	4,515,422	2,899,694
Warrants [Member]
Class of Stock [Line Items]
Common Stock reserved for future issuance	9,325,521	10,926,594