Share Based Payments Summary of Nonvested Options and Changes (Details) - $ / shares	6 Months Ended
	Aug. 31, 2019	Aug. 31, 2018
Options
Nonvested, beginning of period	608,175
Granted	604,500
Vested	329,434
Nonvested, end of period	883,241
Weighted Average Grant Date Fair Value
Nonvested, beginning of period	$ 1.64
Granted	2.19	$ 2.27
Vested	1.49
Nonvested, end of period	$ 2.08