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Share-based Payments (Tables)
 9 Months Ended
Dec. 31, 2016
Share-based Payments [Abstract]  
Summary of Black-Scholes option pricing model assumptions used to derive weighted average fair value of stock options granted
The following assumptions were used to derive the weighted average fair value of the stock options granted:

  
Nine Months Ended
December 31,
 
  
2016
  
2015
 
Weighted average risk free interest rate
  
1.38
%
  
1.73
%
Weighted average expected holding period (years)
  
5.84
   
5.76
 
Weighted average expected volatility
  
47.42
%
  
46.84
%
Weighted average expected dividend yield
  
-
   
-
 
Weighted average fair value of options granted
 
$
13.07
  
$
14.14
 
Summary of stock option transactions
The following is a summary of stock option transactions:

    
Number of
Shares
    
Weighted Average
Exercise Price
 
 
Outstanding at March 31, 2016
  
984,066
  
$
11.98
 
Granted
  
184,000
  
$
28.67
 
Exercised
  
(108,997
)
 
$
13.53
 
Cancelled
  
-
  
$
-
 
Outstanding at December 31, 2016
  
1,059,069
  
$
14.72
 
Schedule of restricted stock units activity
The following is a summary of non-vested RS:
 
  
Number of
Shares
  
Weighted Average
Grant Date Fair
Value
 
Non-vested at March 31, 2016
  
153,527
  
$
22.28
 
Granted
  
55,469
  
$
28.37
 
Vested
  
(89,617
)
 
$
18.14
 
Cancelled
  
-
  
$
-
 
Non-vested at December 31, 2016
  
119,379
  
$
28.22