Intangible Assets - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 126	$ 126
Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible asset, expected life	5 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible asset, expected life	15 years