STOCKHOLDERS' EQUITY (Stock-based Compensation Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 28, 2012
Allocated Share-based Compensation Expense	$ 2,924	$ 2,910	$ 2,375
Unrecognized share-based compensation cost	7,300
Unrecognized compensation cost, recognition period	2 years 9 months 18 days
Cost of revenues [Member]
Allocated Share-based Compensation Expense	191	136	100
Research and development [Member]
Allocated Share-based Compensation Expense	516	450	388
Selling [Member]
Allocated Share-based Compensation Expense	360	252	204
General and administrative [Member]
Allocated Share-based Compensation Expense	$ 1,857	$ 2,072	$ 1,683