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Income Taxes (Details) - Schedule of Deferred Tax Assets and Liabilities - USD ($) | Jan. 31, 2019 | Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2016
--- | --- | --- | --- | ---
Assets: |  |  |  |
General business credit carryforward | $ 26,523,000 | $ 3,897,000 |  |
Accrued liabilities | 308,000 | 687,000 |  |
State net operating loss carryforward | 294,000 | 241,000 |  |
Other items | 647,000 | 576,000 |  |
Valuation allowance | (232,000) | (241,000) | $ (417,000) | $ (1,151,000)
Total | 27,540,000 | 5,160,000 |  |
Liabilities: |  |  |  |
Basis in pass through entities, including depreciation | (25,725,000) | (26,717,000) |  |
Other | (157,000) | (149,000) |  |
Total | (25,882,000) | (26,866,000) |  |
Net deferred tax asset (liability) | $ 1,658,000 | $ (21,706,000) |  |

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