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v3.21.2

Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Jul. 31, 2021 | Jan. 31, 2021 | Jul. 31, 2020 | Jan. 31, 2020 | Apr. 30, 2021
Accounting Policies [Abstract] |  |  |  |  |
Cash equivalents | $ 0 |  |  |  | $ 0
Net income (loss) | (172) | $ (172) | $ 75 | $ 75 |
Net cash provided by (used in) operating activities | 216 |  | (715) |  |
Accumulated deficit | 72,702 |  |  |  | 72,530
Working capital | 919 |  |  |  |
Cash and cash equivalents | 3,998 |  |  |  | 4,687
Unrecognized tax benefits | 181 |  |  |  | 181
Accrued income tax penalties and interest | 3 |  |  |  | $ 3
Income tax penalties and interest expense | 0 |  | 0 |  |
Unrecognized tax benefits anticipated during the next 12 months | 0 |  |  |  |
Provision for income taxes | $ 14 |  | $ 13 |  |

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