Cash equivalents maturity period description.

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Cash held in foreign bank accounts.

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Compensation expenses of option forfeited for not rendering in requested service.

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Products warranty period.

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Summary of significant accounting policies.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Liability as of the balance sheet date for the estimated ultimate cost of settling claims and claim adjustment expense relating to insured events that have occurred on or before the balance sheet date for those liabilities owed to another party as a result of assuming another insurer's primary obligation.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Decrease for amounts of indebtedness forgiven by the holder of the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Represents the charge against earnings during the period for commitment fees and debt issuance expenses.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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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