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PER SHARE DATA (Tables)
 12 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Schedule of weighted average common shares (denominator) used in the basic and dilutive earnings per share computation
The following table sets forth the composition of the weighted average common shares (denominator) used in the basic and dilutive per share computation.
 
 
Year Ended December 31,
 
 
2015
 
2014
 
2013
Weighted average common shares issued
 
5,003,691

 
5,001,171

 
4,591,222

Average treasury stock shares
 
(231,452
)
 
(185,022
)
 
(180,596
)
Weighted average common shares used to calculate basic and diluted earnings per share
 
4,772,239

 
4,816,149

 
4,410,626