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Stock Options, Restricted Shares and Warrants (Schedule of Restricted Shares) (Details) - USD ($)
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Compensation expense $ 1,462,000 $ 1,499,000 $ 1,593,000
Restricted shares      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Shares outstanding, beginning of the period (shares) 704,688    
Shares issued (shares) 795,805    
Shares vested (shares) (240,633)    
Shares forfeited (shares) (206,471)    
Shares outstanding, end of the period (shares) 1,053,389 704,688  
Per share price on grant date (usd per share) $ 2.06    
Compensation expense $ 1,306,191    
Restricted shares | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Per share price on grant date (usd per share) $ 1.34    
Restricted shares | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Per share price on grant date (usd per share) $ 2.62