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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Jun. 15, 2021 | Jan. 31, 2022 | Jan. 31, 2021 | Jan. 31, 2020 | May 06, 2020
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Highly liquid investments with an original maturity |  | 90 days or less |  |  |
Cash of held in foreign bank accounts |  | $ 3,700,000 | $ 4,600,000 |  |
Net transactional foreign exchange gain (loss) |  | (288,000) | 590,000 | $ (448,000) |
Advertising expense |  | 1,300,000 | 900,000 | 1,800,000 |
Impairment of Long lived assets held for use |  | $ 0 | $ 0 | $ 0 |
Number of common equivalent shares |  | 345,085 | 642,623 | 202,187 |
No compensation expense is recognized on forfeited options |  | $ 0 |  |  |
Liability for self-insured claims |  | 200,000 | $ 200,000 |  |
Gain on Extinguishment of Debt – PPP Loan |  | 4,466,000 |  |  |
Foreign Exchange [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Net transactional foreign exchange gain (loss) |  | 300,000 | $ 600,000 | $ (400,000) |
Paycheck Protection Program Loan [Member] | Greenwood Credit Union [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Debt instrument face amount |  |  |  |  | $ 4,400,000
Gain on Extinguishment of Debt – PPP Loan |  | 4,500,000 |  |  |
Amount of PPP loan forgiven | $ 4,400,000 |  |  |  |
Promissory Note [Member] | Paycheck Protection Program Loan [Member] | Greenwood Credit Union [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Debt related commitment fees and debt issuance costs |  | $ 4,400,000 |  |  |
Maximum [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Percentage of revenue satisfied for services |  | 11.00% | 9.00% |  |
Maximum [Member] | Airborne Product [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Products warranty period |  | 5 years |  |  |
Minimum [Member] | Airborne Product [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Products warranty period |  | 3 years |  |  |
Land Improvements [Member] | Maximum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of the assets |  | 20 years |  |  |
Land Improvements [Member] | Minimum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of the assets |  | 10 years |  |  |
Building And Leasehold Improvements [Member] | Maximum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of the assets |  | 45 years |  |  |
Building And Leasehold Improvements [Member] | Minimum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of the assets |  | 10 years |  |  |
Machinery and Equipment [Member] | Maximum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of the assets |  | 10 years |  |  |
Machinery and Equipment [Member] | Minimum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of the assets |  | 3 years |  |  |
Computer Equipment And Software [Member] | Maximum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of the assets |  | 10 years |  |  |
Computer Equipment And Software [Member] | Minimum [Member] |  |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |
Estimated useful lives of the assets |  | 3 years |  |  |

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