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Share-based Compensation (Details Textual)
$ in Millions
3 Months Ended 6 Months Ended
Sep. 30, 2016
USD ($)
shares
Sep. 30, 2016
USD ($)
shares
Stock Based Compensation (Textual) [Abstract]    
Maximum number of shares subject to stock options and restricted shares 1,300,000  
Stock Options [Member]    
Stock Based Compensation (Textual) [Abstract]    
Stock option granted   0
Restricted Stock [Member]    
Stock Based Compensation (Textual) [Abstract]    
Unrecognized stock based compensation expense related to non-vested restricted stock | $ $ 3.8 $ 3.8
Weighted-average vesting period 1 year 195 days  
Stock Settled Stock Appreciation Rights (SSARS) [Member]    
Stock Based Compensation (Textual) [Abstract]    
Unrecognized stock based compensation expense related to non-vested SSARs | $ $ 1.0 $ 1.0
Weighted-average vesting period 1 year 210 days  
2011 Stock Incentive Plan [Member]    
Stock Based Compensation (Textual) [Abstract]    
Shares authorized under 2011 Stock incentive plan 2,000,000 2,000,000
2011 Stock Incentive Plan [Member] | Stock Options [Member]    
Stock Based Compensation (Textual) [Abstract]    
Maximum number of shares subject to stock options and restricted shares 800,000  
2011 Stock Incentive Plan [Member] | Restricted Shares and Restricted Share Units [Member]    
Stock Based Compensation (Textual) [Abstract]    
Maximum number of shares subject to stock options and restricted shares 400,000