Schedule II - Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2011
Allowances for doubtful accounts
Valuation and Qualifying Accounts
Beginning Balance	$ 1,811	$ 2,108	$ 1,390
Charged to cost and expenses	188	548	865
Deductions	235	845	147
Ending Balance	1,764	1,811	2,108
Allowances for back-to-stock returns
Valuation and Qualifying Accounts
Beginning Balance	3,730	2,040	1,956
Net charge to sales revenue	(463)	1,690	84
Ending Balance	$ 3,267	$ 3,730	$ 2,040

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Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690

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- Definition

+ References

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- Definition

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- Definition

Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

+ References

+ Details

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