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Share Based Payments - Additional Information (Details) - USD ($)
$ / shares in Units, shares in Millions
3 Months Ended 9 Months Ended
Nov. 30, 2016
Nov. 30, 2015
Nov. 30, 2016
Nov. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Proceeds from Stock Options Exercised     $ 0 $ 100,000
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options     $ 0 $ 0
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     $ 1.15 $ 4.04
Shares available for future grants 1.4   1.4  
Restricted stock awards requisite service period     3 years  
Grant date fair value of shares vested     $ 1,400,000 $ 2,800,000
Compensation expenses $ 701,000 $ 904,000 2,217,000 $ 4,669,000
Unrecognized compensation cost $ 1,600,000   $ 1,600,000  
Compensation cost of weighted average period     1 year 4 months  
Other Compensation Plans        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares available for future grants 0.3   0.3  
Two Thousand Sixteen Equity Compensation Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares available for future grants 1.1   1.1  
Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Risk-Free Interest Rate:     0.90% 1.30%
Vesting dates of outstanding options     2017-01  
Expiration dates of options     2017-03  
Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Risk-Free Interest Rate:     1.20% 1.40%
Vesting dates of outstanding options     2019-07  
Expiration dates of options     2016-09