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Summary of Significant Accounting Policies and Related Information - License Agreements, Trademarks, Patents, and Other Intangible Assets (Details) - agreement	12 Months Ended
	Feb. 28, 2022	Feb. 28, 2021	Feb. 29, 2020
Foreign Currency Risk and Currency Exchange Uncertainties
Number of license agreements	2
Patents | Maximum
Foreign Currency Risk and Currency Exchange Uncertainties
Weighted average life (in years)	14 years
Patents | Minimum
Foreign Currency Risk and Currency Exchange Uncertainties
Weighted average life (in years)	12 years
Net sales revenue | Net sales revenue subject to trademark license agreements | Trademark, Licensing, And Royalty Agreements
Foreign Currency Risk and Currency Exchange Uncertainties
Concentration risk percentage	30.00%	41.00%	43.00%
Net sales revenue | Net sales revenue subject to trademark license agreements | Licensor One
Foreign Currency Risk and Currency Exchange Uncertainties
Concentration risk percentage	13.00%
Net sales revenue | Net sales revenue subject to trademark license agreements | Licensor Two
Foreign Currency Risk and Currency Exchange Uncertainties
Concentration risk percentage	10.00%

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