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Income Taxes - Components of Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Jan. 31, 2024 | Jan. 31, 2023
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Income Taxes. |  |
Accrued liabilities not currently deductible | $ 11,736 | $ 5,506
Accumulated net operating losses | 2,397 | 7,577
Difference between tax and accounting basis of property and equipment | 9,088 | 7,400
Research and development expenditures and tax credits | 7,680 | 3,339
Total deferred income tax assets | 30,901 | 23,822
Difference between tax and accounting basis of intangible assets | (42,423) | (42,958)
Temporary difference on equity derivative and related party debt | (5,513) | (3,077)
Total deferred income tax liabilities | (47,936) | (46,035)
Net deferred income taxes | (17,035) | (22,213)
Valuation allowance | (1,969) | (1,704)
Net deferred income taxes, net of valuation allowance | $ (19,004) | $ (23,917)

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