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Stock-Based Compensation (Tables)
9 Months Ended
Dec. 31, 2014
Stock-Based Compensation [Abstract]  
Fair market value of stock-based compensation awards
The fair value of stock-based compensation awards granted during the nine months ended December 31, 2014 and 2013 were as follows:

  
Nine months ended December 31,
 
  
2014
  
2013
 
  
Shares
  
Fair Value
Per Award
  
Shares
  
Fair Value
Per Award
 
Stock options
  
0.1
  
$
10.21
   
0.2
  
$
7.76
 
Restricted stock - retention
  
0.2
  
$
14.94
   
0.3
  
$
10.40
 
Restricted stock - performance based
  
0.2
  
$
14.94
   
0.2
  
$
10.40
 
Unrestricted stock
  
0.1
  
$
14.83
   
0.1
  
$
14.53
 
Assumptions used in determining fair value of options
  
Nine months ended December 31,
 
  
2014
  
2013
 
Expected life of awards in years
  
6.3
   
6.3
 
Risk-free interest rate
  
2.1
%
  
1.3
%
Expected volatility of the Company's stock
  
76.1
%
  
88.7
%
Expected dividend yield on the Company's stock
  
0.0
%
  
0.0
%
Unrecognized compensation cost related to non-vested stock-based compensation awards
As of December 31, 2014, unrecognized compensation cost related to non-vested stock-based compensation awards, which will be amortized over the remaining service periods, was as follows:

  
Unrecognized
Compensation
Cost
  
Weighted Average
Remaining Service
Period in Years
 
Stock options
 
$
2.0
   
2.9
 
Restricted stock - retention
  
5.2
   
2.7
 
Restricted stock - performance based
  
2.7
   
2.0
 
Total
 
$
9.9
   
2.5