Common Stock - Reserved for Future Issuance (Details) - shares	Jul. 31, 2022	Jan. 31, 2022
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	143,104,411	106,331,590
Convertible Debt
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	20,743,081	0
2021 Stock Option Plan
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	40,909,760	36,370,596
Common Stock Warrants
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	35,524,021	35,549,024
Options to purchase common stock
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	19,280,776	22,200,869
Restricted stock units
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	15,383,445	4,033,418
Employee stock purchase plan
Class of Stock [Line Items]
Total shares of common stock reserved (in shares)	11,263,328	8,177,683