Share Based Payments Summary of Nonvested Options and Changes (Details)	9 Months Ended
	Nov. 30, 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	$ 3.62
Options
Nonvested, beginning of period | shares	830,803
Granted | shares	179,678
Vested | shares	165,307
Nonvested, end of period | shares	832,675
Weighted Average Grant Date Fair Value
Nonvested, beginning of period	$ 3.71
Granted	1.15
Vested	5.31
Nonvested, end of period	$ 2.84