Organization and Summary of Significant Accounting Policies - Summary of Geographic Location (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|
Oct. 31, 2021 |
Oct. 31, 2020 |
Oct. 31, 2021 |
Oct. 31, 2020 |
Jan. 31, 2021 |
Jan. 31, 2020 |
|
| Organization And Summary Of Significant Accounting Policies [Line Items] | ||||||
| Revenues | $ 6,913 | $ 7,013 | $ 19,365 | $ 21,826 | $ 29,227 | $ 23,162 |
| United States [Member] | ||||||
| Organization And Summary Of Significant Accounting Policies [Line Items] | ||||||
| Revenues | 6,226 | 6,310 | 17,210 | 20,309 | 27,147 | 23,123 |
| International [Member] | ||||||
| Organization And Summary Of Significant Accounting Policies [Line Items] | ||||||
| Revenues | $ 687 | $ 703 | $ 2,155 | $ 1,517 | $ 2,080 | $ 39 |