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Stock-Based Compensation (Tables)
12 Months Ended
Dec. 31, 2016
Stock-Based Compensation [Abstract]  
Information regarding stock option plan
Information regarding the Company’s stock option plan as of and for the years ended December 31, 2016 and 2015 is as follows:
 
       
Shares
        
Weighted
Average
Exercise
Price
        
Weighted
Average
Remaining
Life
         
Aggregate
Intrinsic
Value
    
Options outstanding, December 31, 2014
  
328,200
   
4.33
       
Options granted
  
111,500
   
5.85
       
Options exercised
  
(21,500
)
  
4.48
       
Options forfeited
  
(78,400
)
  
4.29
       
Options outstanding, December 31, 2015
  
339,800
   
4.83
       
Options granted
  
74,000
   
6.98
       
Options exercised
  
(18,800
)
  
3.96
       
Options forfeited
  
(55,500
)
  
5.08
       
Options outstanding, December 31, 2016
  
339,500
   
5.31
   
4.89
  
$
878,385
 
Options exercisable, December 31, 2016
  
138,066
   
4.48
   
1.89
  
$
472,635
 
Option price range at December 31, 2016
   
$
3.37 to $7.48
         
Stock options valuation assumptions
The following weighted average assumptions were used to value options granted in current and prior periods presented.

  
2016
  
2015
 
Expected life of options
 
5.5 years
  
5.5 years
 
Risk-free interest rate
  
1.77
%
  
1.71
%
Expected volatility
  
58.32
%
  
61.84
%
Expected dividend yield
  
0.00
%
  
0.00
%
Weighted average fair value of options granted
 
$
3.55
  
$
3.16
 
Summary of nonvested options in stock option plan
The following table summarizes the nonvested options in the Company’s stock option plan as of December 31, 2016.
 
      
Shares
      
Weighted
Average
Exercise
Price
   
Nonvested options outstanding, December 31, 2015
  
235,570
  
$
5.13
 
Nonvested options granted
  
74,000
   
6.98
 
Nonvested options vested
  
(52,636
)
  
4.87
 
Nonvested options forfeited
  
(55,500
)
  
5.08
 
Nonvested options outstanding, December 31, 2016
  
201,434
  
$
5.89