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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)
In Thousands, unless otherwise specified
0 Months Ended
Feb. 28, 2014
reserve
Feb. 28, 2014
Gross trade receivable
Concentrations of credit risk
Two major customers
customer
Feb. 28, 2013
Gross trade receivable
Concentrations of credit risk
Two major customers
customer
Feb. 28, 2014
Gross trade receivable
Concentrations of credit risk
Five top customers
customer
Feb. 28, 2013
Gross trade receivable
Concentrations of credit risk
Five top customers
customer
Feb. 28, 2014
Allowances for doubtful accounts
Feb. 28, 2013
Allowances for doubtful accounts
Feb. 29, 2012
Allowances for doubtful accounts
Feb. 28, 2011
Allowances for doubtful accounts
Feb. 28, 2014
Allowances for back-to-stock returns
Feb. 28, 2013
Allowances for back-to-stock returns
Feb. 29, 2012
Allowances for back-to-stock returns
Feb. 28, 2011
Allowances for back-to-stock returns
Receivables                          
Number of receivables valuation reserves 2                        
Valuation reserve           $ 2,127 $ 1,764 $ 1,811 $ 2,108 $ 2,552 $ 3,267 $ 3,730 $ 2,040
Number of major customers   2 2 5 5                
Percentage of concentration risk   10.00% 17.00% 44.00% 42.00%