Share Based Payments Summary of Stock Options Outstanding and Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
Nov. 30, 2019
Options
Outstanding, beginning of period	2,738,087
Granted	604,500
Exercised	199,643
Expired	70,860
Outstanding, end of period	3,072,084
Exercisable, end of period	2,201,843
Price
Outstanding, beginning of period	$ 4.72
Granted	4.94
Exercised	3.49
Expired	6.32
Outstanding, end of period	4.81
Exercisable, end of period	$ 4.89
Outstanding, end of period	$ 2,756
Exercisable, end of period	$ 2,344
Outstanding, end of period	6 years 2 months 12 days
Exercisable, end of period	5 years 2 months 12 days

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Period Type:	instant

- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.