STOCKHOLDERS' EQUITY (Tables)

12 Months Ended

Feb. 28, 2014

The following table summarizes stock option activity for fiscal years 2014, 2013 and 2012 (options in thousands):

			Weighted
	Number of		Average
	Options		Exercise Price
Outstanding at February 28, 2011	2,108		$	4.87

Granted	163			3.42
Exercised	(16	)		1.68
Forfeited or expired	(92	)		4.98
Outstanding at February 28, 2012	2,163			4.78

Granted	84			7.01
Exercised	(466	)		2.78
Forfeited or expired	(125	)		3.90
Outstanding at February 28, 2013	1,656			5.53

Granted	56			15.14
Exercised	(611	)		7.28
Forfeited or expired	(8	)		4.53
Outstanding at February 28, 2014	1,093		$	5.04

Exercisable at February 28, 2014	882		$	4.48

Schedule of Stock Option Valuation Assumptions

The fair value of options at the grant date was determined using the Black-Scholes option pricing model with the following assumptions:

	Year Ended February 28,
Black-Scholes Valuation Assumptions	2014		2013		2012
Expected life (years) (1)	6		6		6
Expected volatility (2)	69	%	63	%	73	%
Risk-free interest rates (3)	1.7	%	0.8	%	1.9	%
Expected dividend yield	0	%	0	%	0	%

(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.

Summary of Restricted Stock Shares and RSUs Activity

Changes in the Company's outstanding restricted stock shares and RSUs during fiscal years 2014, 2013 and 2012 were as follows (shares and RSUs in thousands):

			Weighted
	Number of		Average Grant
	Shares		Date Fair
	and RSUs		Value
Outstanding at February 28, 2011	2,045		$	2.16

Granted	762			3.59
Vested	(819	)		2.21
Forfeited	(59	)		1.99
Outstanding at February 28, 2012	1,929			2.71

Granted	440			7.50
Vested	(916	)		2.53
Forfeited	(115	)		2.85
Outstanding at February 28, 2013	1,338			4.40

Granted	312			15.58
Vested	(592	)		3.83
Forfeited	(34	)		7.88
Outstanding at February 28, 2014	1,024		$	8.02

Schedule of Stock-based Compensation Expense

Stock-based compensation expense for the years ended February 28, 2014, 2013 and 2012 is included in the following captions of the consolidated statements of income (in thousands):

	Year Ended February 28,
	2014		2013		2012
Cost of revenues	$	191	$	136	$	100
Research and development		516		450		388
Selling		360		252		204
General and administrative		1,857		2,072		1,683
	$	2,924	$	2,910	$	2,375