Stock Option Plan and Stock Based Compensation (Details 3) (USD $)	6 Months Ended
	Aug. 31, 2012
Summary of unvested stock options
Unvested at February 29, 2012, Number of Options	169,411
Unvested at February 29, 2012, Weighted Average Grant Date Fair Value	$ 3.31
New grants, Number of Options	72,707
New grants, Weighted Average Grant Date Fair Value	$ 2.83
Vested, Number of Options	(70,914)
Vested, Weighted Average Grant Date Fair Value	$ 3.13
Forfeited, Number of Options
Forfeited, Weighted Average Grant Date Fair Value
Unvested at August 31, 2012, Number of Options	171,204
Unvested at August 31, 2012, Weighted Average Grant Date Fair Value	$ 3.18