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Delivery Costs (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Other Income and Expenses [Abstract]
Shipping and classroom delivery costs	$ 7,129,000	$ 5,112,000	$ 10,383,000	$ 8,033,000

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- References

No definition available.

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- Definition

Shipping And Classroom Delivery Costs

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No definition available.

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