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Stock-Based Compensation (Tables)
 12 Months Ended
Mar. 31, 2017
Stock-Based Compensation [Abstract]  
Assumptions used in determining fair value of options
The Company estimated the fair value of option awards on the date of grant using the Black-Scholes option valuation model and the following assumptions:

  
Years ended March 31,
 
  
2017
  
2016
  
2015
 
Weighted-average fair value of options
 
$
4.60
  
$
7.11
  
$
10.21
 
Expected life of awards in years
  
6.4
   
6.3
   
6.3
 
Risk-free interest rate
  
1.4
%
  
1.9
%
  
2.1
%
Expected volatility of the Company's stock
  
45.5
%
  
66.9
%
  
76.1
%
Expected dividend yield on the Company's stock
  
0.0
%
  
0.0
%
  
0.0
%
Summary of the stock option activity
A summary of stock option activity for fiscal 2017 was as follows:

  
Shares
  
Weighted-average
exercise price
  
Weighted-average
remaining contractual
term (years)
  
Aggregate
intrinsic value
 
Outstanding, beginning
  
1.5
  
$
10.82
       
Granted
  
0.3
   
10.00
       
Exercised
  
(0.1
)
  
9.23
       
Forfeited or expired
  
(0.2
)
  
21.76
       
Outstanding, ending
  
1.5
  
$
9.83
   
5.5
  
$
4.4
 
                 
Exercisable, March 31, 2017
  
1.0
  
$
9.27
   
4.0
  
$
3.6
 
Information related to stock options exercised
Additional information related to stock options exercised is as follows:

  
Years ended March 31,
 
  
2017
  
2016
  
2015
 
Intrinsic value of stock options exercised
 
$
0.5
  
$
0.4
  
$
0.4
 
Proceeds from stock options exercised
 
$
0.9
  
$
0.5
  
$
0.6
 
Summary of the restricted stock activity
A summary of restricted stock activity for fiscal 2017 was as follows:

  
Shares
  
Weighted-
average
price
 
Non-vested balance, beginning
  
0.6
  
$
11.29
 
Granted
  
0.4
   
9.98
 
Vested
  
(0.4
)
  
10.05
 
Non-vested balance, ending
  
0.6
  
$
11.21