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Share Based Payments - Additional Information (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Feb. 28, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options granted, term 10 years    
Stock options vesting period 3 years    
Annual percentage over three years 33.33%    
Stock options weighted average grant date fair value $ 2.27 $ 1.25 $ 1.20
Shares available for future grants 2.0    
Restricted stock awards requisite service period 3 years    
Grant date fair value of shares vested $ 1.1 $ 1.1 $ 1.8
Unrecognized compensation cost $ 0.9    
Compensation cost of weighted average period 1 year 6 months    
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting dates of outstanding options 2019-03    
Expiration dates of options 2019-03    
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting dates of outstanding options 2021-07    
Expiration dates of options 2028-07    
Two Thousand Seventeen Equity Compensation Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for future grants 1.7    
Other Compensation Plans      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for future grants 0.3