Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer.

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Amount of right to recover product from customer on settling refund liability.

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Revenue from Contracts with Customers - Additional Information (Details)		6 Months Ended
	Mar. 01, 2019 Segment	Aug. 31, 2019 USD ($) Segment	Feb. 28, 2019 USD ($)	Aug. 31, 2018 USD ($)
Disaggregation Of Revenue [Line Items]
Revenue, Remaining Performance Obligation, Amount		$ 0		$ 0
Contract with Customer, Right to Recover Product		1,121,000	$ 1,962,000
Contract with Customer, Refund Liability		2,990,000	4,415,000
Contract with Customer, Asset, Net		0	0
Contract with Customer, Liability		$ 0	$ 0
Number of Reportable Segments \| Segment	3	3
Minimum [Member]
Disaggregation Of Revenue [Line Items]
Warrant period		30 days
Maximum [Member]
Disaggregation Of Revenue [Line Items]
Warrant period		3 years