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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No definition available.

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Products warranty period.

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No definition available.

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Summary of significant accounting policies.

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No definition available.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-Topic 720
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-Paragraph 1
-Subparagraph (b)
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- Definition

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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- Definition

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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- Definition

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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- Definition

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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- Definition

Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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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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No definition available.

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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2019	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	$ 4,600,000	$ 3,400,000
Net transactional foreign exchange losses	600,000	400,000	$ 700,000
Advertising expense	900,000	1,800,000	1,900,000
Impairment of Long lived assets held for use	0	0	0
Impairment of intangible assets	$ 0	$ 0	$ 0
Number of common equivalent shares	642,623	202,187	326,275
No compensation expense is recognized on forfeited options	$ 0
Liability for self-insured claims	200,000	$ 600,000
Green wood Credit Union [Member] \| Paycheck Protection Program Loan [Member]
Summary Of Significant Accounting Policies [Line Items]
Debt instrument face amount				$ 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	10.00%	10.00%
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