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INCOME TAXES - Schedule of Tax Effects of Temporary Differences that Gave Rise to Deferred Tax Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2022 | Jan. 31, 2021 | Jan. 31, 2020
Assets: |  |  |
Net operating loss carryforwards | $ 14,360 | $ 14,192 |
Stock awards | 2,325 | 2,549 |
Research and development credit carryforwards | 269 | 102 |
Purchased intangibles | 19 | 234 |
Lease liabilities | 772 | 775 |
Accrued expenses and other | 1,828 | 1,422 |
Total Assets | 19,573 | 19,274 |
Liabilities: |  |  |
Purchased intangibles | (3,533) | (3,513) |
Construction contracts | (1,034) | (968) |
Property and equipment | (1,334) | (1,801) |
Right-of-use assets | (768) | (770) |
Other | (43) | (176) |
Total Liabilities | (6,712) | (7,228) |
Valuation allowances | (12,404) | (11,797) |
Deferred tax assets | 457 | 249 |
Net operating losses | 5,900 |  |
Income tax (expense) benefit | $ (11,356) | $ (1,074) | $ 7,053

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