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Accounting Policies (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020	Jan. 31, 2021
Accounting Policies (Details) [Line Items]
Outbound Freight Charges	$ 1,561,000	$ 839,000	$ 7,156,000	$ 2,162,000
Income Taxes Paid			1,900,000	300,000
Proceeds from Income Tax Refunds			0	$ 300,000
Unrecognized Tax Benefits	8,655,000		8,655,000		$ 8,380,000
Income Tax Examination, Penalties and Interest Accrued	30,000		30,000		20,000
Inventory Write-down			$ 1,300,000		$ 1,000,000.0
Minimum [Member] | Building and Building Improvements [Member]
Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives					5
Minimum [Member] | Fixtures And Equipment [Member]
Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives			2
Maximum [Member] | Building and Building Improvements [Member]
Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives					40 years
Maximum [Member] | Fixtures And Equipment [Member]
Accounting Policies (Details) [Line Items]
Property, Plant and Equipment, Estimated Useful Lives			20 years
Provision for Income Taxes [Member]
Accounting Policies (Details) [Line Items]
Unrecognized Tax Benefits	$ (8,600,000)		$ (8,600,000)
Cost of Sales [Member]
Accounting Policies (Details) [Line Items]
Maximum Percentage of Equity Ownership Interest Which May be Considered for Equity Method of Accounting			20.00%

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The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Amount of unrecognized tax benefits.

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