Prepaid Expenses and Other Current Assets - Summary of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands |
Oct. 31, 2021 |
Jan. 31, 2021 |
Jan. 31, 2020 |
|---|---|---|---|
| Prepaid Expense and Other Assets, Current [Abstract] | |||
| Prepaid expenses | $ 2,046 | $ 1,507 | |
| Other assets | 126 | 48 | |
| Prepaid expenses and other current assets | $ 4,254 | $ 2,172 | $ 1,555 |