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STOCK-BASED COMPENSATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2012	Aug. 31, 2011
Allocated Share-based Compensation Expense	$ 814	$ 567	$ 1,672	$ 1,099
Cost Of Sales [Member]
Allocated Share-based Compensation Expense	32	(3)	59	40
Research and Development Expense [Member]
Allocated Share-based Compensation Expense	111	94	209	176
Selling and Marketing Expense [Member]
Allocated Share-based Compensation Expense	84	48	147	93
General and Administrative Expense [Member]
Allocated Share-based Compensation Expense	$ 587	$ 428	$ 1,257	$ 790

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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