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Share Based Payments - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Apr. 02, 2012
Aug. 31, 2015
Aug. 31, 2014
Aug. 31, 2015
Aug. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Proceeds from Stock Options Exercised       $ 100,000 $ 300,000
Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options       $ 100,000 $ 0.00
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       $ 1.01 $ 1.64
Shares available for future grants   3,100,000   3,100,000  
Restricted stock awards requisite service period       3 years  
Grant date fair value of shares vested       $ 1,700,000 $ 3,600,000
Compensation expenses   $ 1,661,000 $ 583,000 3,765,000 $ 1,531,000
Unrecognized compensation cost   $ 2,800,000   $ 2,800,000  
Compensation cost of weighted average period       2 years 1 month 6 days  
2012 Retention Plan          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Restricted stock awards requisite service period 2 years        
Preferred stock contributed by company 400,000        
Compensation expenses       $ 400,000  
Minimum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Risk-Free Interest Rate:       1.30% 1.20%
Vesting dates of outstanding options       2015-09  
Expiration dates of options       2016-03  
Maximum          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Risk-Free Interest Rate:       1.40% 1.50%
Vesting dates of outstanding options       2019-02  
Expiration dates of options       2025-08