STOCKHOLDERS' EQUITY (Fair Value Assumptions) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Feb. 28, 2013		Feb. 29, 2012		Feb. 28, 2011
STOCKHOLDERS' EQUITY [Abstract]
Expected life (years)	6 years	[1]	6 years	[1]	6 years	[1]
Expected volatility	63.00%	[2]	73.00%	[2]	74.00%	[2]
Risk-free interest rates	0.80%	[3]	1.90%	[3]	2.10%	[3]
Expected dividend yield	0.00%		0.00%		0.00%
Weighted average fair value of stock options granted	$ 4.41		$ 2.22		$ 1.54
Weighted average remaining contractual term of outstanding options	4 years 10 months 24 days
Aggregate intrinsic value of outstanding options	$ 9.6
Weighted average remaining contractual term of exercisable options	4 years 2 months 12 days
Aggregate intrinsic value of exercisable options	$ 7.7

[1] The expected life of stock options is estimated based on historical experience.

[2] The expected volatility is estimated based on historical volatility of the Company's stock price.

[3] Based on the U.S. Treasury constant maturity interest rate whose term is consistent with the expected life of the stock options.