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Stock-Based Plans and Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2014
Stock-Based Plans and Stock-Based Compensation [Abstract]  
Information Regarding Stock-Based Compensation
Certain information regarding our stock-based compensation was as follows (in thousands, except per share amounts):

  
Year Ended December 31,
 
  
2014
  
2013
  
2012
 
Weighted average per share fair value of stock options granted
 
$
6.89
  
$
4.90
  
$
4.84
 
Intrinsic value of stock options exercised
  
932
   
554
   
40
 
Intrinsic value of fully-vested stock awards granted
  
288
   
1,039
   
366
 
Stock-based Compensation Expense
Stock-based compensation expense was recognized in our Consolidated Statements of Income as follows (in thousands):

  
Year Ended December 31,
 
  
2014
  
2013
  
2012
 
Selling, general and administrative expense
 
$
666
  
$
464
  
$
547
 
Cost of sales
  
118
   
85
   
-
 
Total stock-based compensation expense
 
$
784
  
$
549
  
$
547
 
Weighted Average Assumptions Utilized in Determining Fair Value
The following weighted average assumptions were utilized in determining fair value pursuant to the Black-Scholes option pricing model:

  
Year Ended December 31,
 
  
2014
  
2013
  
2012
 
Risk-free interest rate
  
2.11
%
  
1.61
%
  
1.46
%
Dividend yield
  
0.0
%
  
0.0
%
  
0.0
%
Expected life
 
7.34 years
  
7.85 years
  
8.15 years
 
Volatility
  
60.20
%
  
58.91
%
  
60.39
%
Stock Option Activity
Stock option activity for the year ended December 31, 2014 was as follows:

  
Options Outstanding
  
Weighted Average Exercise Price
 
Outstanding at December 31, 2013
  
298,954
  
$
6.73
 
Granted
  
141,955
   
11.17
 
Exercised
  
(104,804
)
  
4.65
 
Cancelled
  
(31,074
)
  
8.33
 
Forfeited
  
-
   
-
 
Outstanding at December 31, 2014
  
305,031
   
9.35
 
Information Regarding Options Outstanding
Certain information regarding options outstanding as of December 31, 2014 was as follows:

  
Options
Outstanding
  
Options
Exercisable
 
Number
  
305,031
   
53,390
 
Weighted average exercise price
 
$
9.35
  
$
8.00
 
Aggregate intrinsic value
 
$
1,248,000
  
$
288,000
 
Weighted average remaining contractual term
 
8.5 years
  
7.5 years
 
Performance-based Stock Award Activity
Activity related to performance-based awards was as follows (in shares):

  
2014
 Awards
  
2013
Awards
  
2012
 Awards
  
2011
 Awards
  
Total
 
Granted (target amount)
  
77,443
   
50,347
   
42,450
   
57,145
   
227,385
 
Vested
  
-
   
-
   
-
   
(28,571
)
  
(28,571
)
Canceled due to termination of employee
  
(12,561
)
  
(16,999
)
  
-
   
-
   
(29,560
)
Canceled due to failure to meet performance goals
  
-
   
-
   
-
   
(28,574
)
  
(28,574
)
Not expected to vest due to failure to meet performance goals
  
-
   
-
   
(22,938
)
  
-
   
(22,938
)
Expected to vest as of December 31, 2014
  
64,882
   
33,348
   
19,512
   
-
   
117,742