Share Based Payments Summary of Restricted Stock Grants Outstanding and Activity (Detail) (Restricted Stock, USD $)	3 Months Ended
	May 31, 2014
Restricted Stock
Awards
Grants outstanding, beginning of year	590,544
Granted	1,205,848
Vested (restriction lapsed)	1,150,848
Grants outstanding, end of year	645,544
Price
Grants outstanding, beginning of year	$ 1.79
Granted	$ 3.33
Vested (restriction lapsed)	$ 3.12
Grants outstanding, end of year	$ 2.30