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 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
	Aug. 31, 2020 USD ($) Segment	Feb. 29, 2020 USD ($)	Aug. 31, 2019 USD ($)
Disaggregation Of Revenue [Line Items]
Revenue, remaining performance obligation, amount	$ 0		$ 0
Contract with customer, right to recover product	1,218,000	$ 1,544,000
Contract with customer, refund liability	2,926,000	3,779,000
Contract with customer, asset, net	$ 0	0
Contract with customer, liability		$ 0
Number of reportable segments \| Segment	3
Telematic Subscription Services [Member]
Disaggregation Of Revenue [Line Items]
Contract with customer, liability	$ 5,556,000
Minimum [Member]
Disaggregation Of Revenue [Line Items]
Warrant period	30 days
Maximum [Member]
Disaggregation Of Revenue [Line Items]
Warrant period	3 years