Share Based Payments Summary of Nonvested Options and Changes (Details)	6 Months Ended
	Aug. 31, 2016 $ / shares shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share Based Compensation Share Based Payment Awards Option Forfeited In Period Weighted Average Grant Date Fair Value	$ 4.22
Options
Nonvested, beginning of period | shares	830,803
Granted | shares	174,678
Vested | shares	125,306
Nonvested, end of period | shares	875,800
Weighted Average Grant Date Fair Value
Nonvested, beginning of period	$ 3.71
Granted	1.13
Vested	5.03
Nonvested, end of period	$ 3.00