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Share-Based Plans - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Aug. 11, 2015
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Stock-Based Compensation (Textual) [Abstract]        
Other long-term obligations   $ 3,771 $ 4,631  
2013 Stock Compensation Plan        
Stock-Based Compensation (Textual) [Abstract]        
Expiry period of option   10 years    
Shares available for grant   633,948    
Service-Based Options | 2013 Stock Compensation Plan        
Stock-Based Compensation (Textual) [Abstract]        
Exercisable rate percentage   25.00%    
Exercisable period   1 year    
Stock Option        
Stock-Based Compensation (Textual) [Abstract]        
Weighted average fair value of stock options granted (in dollars per share)   $ 6.25 $ 7.24 $ 9.14
Intrinsic value of options exercised   $ 253 $ 428 $ 628
Fair value of stock options vested   1,048 909 813
Total unrecognized compensation cost related to non-vested stock option awards   $ 1,369    
Equity incentive plan recognized over a weighted average period   2 years 6 months 14 days    
Share based compensation expense   $ 666 872 1,150
Recognized tax benefit   $ 256 331 436
RSUs        
Stock-Based Compensation (Textual) [Abstract]        
Equity incentive plan recognized over a weighted average period   2 years 1 month 28 days    
Recognized tax benefit   $ 431 332 336
Fair value of restricted stock units vested   806 1,053 975
Total unrecognized compensation cost related to non-vested RSUs   $ 1,546    
Number of RSUs Granted (in shares)   75,602    
RSUs | Board of Directors Chairman        
Stock-Based Compensation (Textual) [Abstract]        
Number of RSUs Granted (in shares) 10,000      
Employee-related Liabilities   $ 210    
Other long-term obligations     87  
Dividend equivalents   8 6  
Selling, General and Administrative Expenses | RSUs        
Stock-Based Compensation (Textual) [Abstract]        
Share based compensation expense   $ 1,118 $ 875 $ 888
Tranche one | Service-Based RSUs | 2013 Stock Compensation Plan        
Stock-Based Compensation (Textual) [Abstract]        
Exercisable rate percentage   50.00%