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Retirement Plans (401(k) Retirement Plan) (Details) - UNITED STATES - USD ($) | 12 Months Ended
--- | ---
Jan. 31, 2022 | Jan. 31, 2021
Defined Benefit Plan Disclosure [Line Items] |  |
Virco stock held in plan | 1,077,995 | 915,542
Company contributions | $ 867,000 | $ 774,000
Minimum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Participant deferral percentage allowance | 1.00% |
Maximum |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Participant deferral percentage allowance | 75.00% |

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