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Stock Compensation
12 Months Ended
Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Stock Compensation
(12)   Stock Compensation
The Company has one equity compensation plan for its employees pursuant to which options were granted.
The following table summarizes the Company’s stock option activity:
     
Number of shares 
December 31
   
Weighted average 
exercise price 
December 31
   
Weighted average 
Contractual Term 
(in years)
   
Aggregate 
Intrinsic Value 
($000)
                       
     
2017
   
2016
   
2015
   
2017
   
2016
   
2015
   
2017
   
2016
   
2015
   
2017
   
2016
   
2015
                       
Outstanding, beginning of year         46,244           67,893           108,596         $ 19.33         $ 19.88         $ 19.19                                                                                                  
Granted         0           0           0           0.00           0.00           0.00                                                                                                  
Exercised         0           0           0           0.00           0.00           0.00                                                                                                  
Forfeited or expired         (26,141)           (21,649)           (40,703)           22.84           21.04           20.01                                                                                                  
Outstanding, end of year         20,103           46,244           67,893         $ 14.77         $ 19.33         $ 19.88           0.73           0.99           1.41         $ 120,231         $ 49,837         $ 0.00                          
Exercisable, end of year         20,103           44,925           59,799         $ 14.77         $ 19.47         $ 20.57           0.73           0.97           1.24         $ 120,231         $ 46,870         $ 0.00                          
                                                                                                                                                                                                                     
Options have been adjusted to reflect a 4% stock dividend paid on July 1, 2017.
Total stock-based compensation expense for the years ended December 31, 2017, 2016, and 2015 was $3,000, $17,000, and $10,000, respectively. As of December 31, 2017, there was no remaining unrecognized compensation expense related to non-vested stock awards. The Plan expired on February 28, 2010, except as to outstanding options under the Plan, and no further options may be granted pursuant to the Plan.