Net Loss per Share - Calculation of Diluted Net Loss Per Share Attributable to Common Stockholders (Detail) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Antidilutive securities excluded from computation of earnings per share, amount	23,531,716	2,171,477
Stock Option [Member]
Antidilutive securities excluded from computation of earnings per share, amount	2,929,472	2,171,477
Warrants [Member]
Antidilutive securities excluded from computation of earnings per share, amount	20,602,244