Schedule II - Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Feb. 29, 2012	Feb. 28, 2011	Feb. 28, 2010
Allowances for doubtful accounts
Valuation and Qualifying Accounts
Beginning Balance	$ 2,108	$ 1,390	$ 1,916
Charged to cost and expenses	548	865	448
Deductions	845	147	974
Ending Balance	1,811	2,108	1,390
Allowances for back-to-stock returns
Valuation and Qualifying Accounts
Beginning Balance	2,040	1,956	1,840
Net charge to sales revenue	1,690	84	116
Ending Balance	$ 3,730	$ 2,040	$ 1,956

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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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