PROPERTY, EQUIPMENT AND IMPROVEMENTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 28, 2014
Property, equipment and improvements
Property, equipment and improvements, net of accumulated depreciation and amortization	$ 11,225	$ 10,525
Depreciation expense	3,582	2,796	$ 1,822
Leasehold Improvements [Member]
Property, equipment and improvements
Property, equipment and improvements, gross	1,815	1,833
Plant Equipment and Tooling [Member]
Property, equipment and improvements
Property, equipment and improvements, gross	12,541	13,355
Office Equipment, Computers and Furniture [Member]
Property, equipment and improvements
Property, equipment and improvements, gross	6,468	5,753
Software [Member]
Property, equipment and improvements
Property, equipment and improvements, gross	9,789	7,439
Property and Equipment, Excluding Fixed Assets Not Yet In Service [Member]
Property, equipment and improvements
Property, equipment and improvements, gross	30,613	28,380
Less accumulated depreciation and amortization	(21,852)	(20,177)
Property, equipment and improvements, net of accumulated depreciation and amortization	8,761	8,203
Fixed Assets Not Yet in Service [Member]
Property, equipment and improvements
Property, equipment and improvements, gross	$ 2,464	$ 2,322