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Stock Options and Restricted Stock Awards (Details) (USD $)
 9 Months Ended 0 Months Ended
Dec. 31, 2013
Stock Options [Member]
Dec. 31, 2012
Stock Options [Member]
Sep. 03, 2013
Restricted Stock [Member]
Installment
Dec. 31, 2013
Restricted Stock [Member]
Summary of Black-Scholes option pricing model assumptions used to derive weighted average fair value of stock options granted [Abstract]        
Weighted average risk free interest rate (in hundredths) 1.94% 1.16%    
Weighted average expected holding period (years) 5 years 11 months 16 days 6 years 7 months 6 days    
Weighted average expected volatility (in hundredths) 48.52% 44.25%    
Weighted average expected dividend yield (in hundredths) 0.00% 0.00%    
Weighted average fair value of options granted (in dollars per share) $ 4.42 $ 2.92    
Number of Shares [Roll Forward]        
Outstanding at beginning of period (in shares) 1,970,084      
Granted (in shares) 272,000 632,800    
Exercised (in shares) (476,001)      
Cancelled (in shares) (152,450)      
Outstanding at end of period (in shares) 1,613,633      
Weighted Average Exercise Price [Roll Forward]        
Outstanding at beginning of period (in dollars per share) $ 8.73      
Granted (in dollars per share) $ 9.25      
Exercised (in dollars per share) $ 8.80      
Cancelled (in dollars per share) $ 7.44      
Outstanding at end of period (in dollars per share) $ 8.92      
Number of stock options exercisable (in shares) 1,176,930      
Weighted average exercise price of stock options exercisable (in dollars per share) $ 9.18      
Number of Shares [Roll Forward]        
Non-vested at beginning of period (in shares) 420,401      
Granted (in shares) 272,000 632,800    
Vested (in shares) (142,998)      
Cancelled (in shares) (112,700)      
Non-vested at end of period (in shares) 436,703      
Weighted Average Grant Date Fair Value [Roll Forward]        
Non-vested at beginning of period (in dollars per share) $ 2.93      
Granted (in dollars per share) $ 4.42 $ 2.92    
Vested (in dollars per share) $ 2.97      
Cancelled (in dollars per share) $ 2.92      
Non-vested at end of period (in dollars per share) $ 3.86      
Total unrecognized compensation expense $ 1,768,000     $ 1,179,000
Weighted average vesting period over which compensation expense is expected to be recognized 2 years 1 month 6 days      
Summary of restricted stock transactions [Abstract]        
Granted (in shares)     138,000  
Closing market price of shares granted (in dollars per share)     $ 9.32  
Number of equal annual installments in which awards vest     3  
Fair value to be recognized as compensation expense     $ 1,286,000