STOCKHOLDERS' EQUITY (Schedule of Stock-based Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	$ 5,854	$ 4,100	$ 2,924
Cost of revenues [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	229	241	191
Research and development [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	781	613	516
Selling [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	1,208	591	360
General and administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock-based compensation expense	$ 3,636	$ 2,655	$ 1,857