Share Based Payments Summary of Restricted Stock Grants Outstanding and Activity (Detail) (Restricted Stock, USD $)	12 Months Ended
	Feb. 28, 2014
Restricted Stock
Awards
Grants outstanding, beginning of year (in shares)	537,405
Granted (in shares)	1,153,080
Vested (restriction lapsed) (in shares)	1,097,832
Forfeited (in shares)	2,109
Grants outstanding, end of year (in shares)	590,544
Price
Grants outstanding, beginning of year (in dollars per share)	$ 1.72
Granted (in dollars per share)	$ 2.04
Vested (restriction lapsed) (in dollars per share)	$ 2.02
Forfeited (in dollars per share)	$ 1.73
Grants outstanding, end of year (in dollars per share)	$ 1.79