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WEIGHTED AVERAGE COMMON SHARES (Tables)
12 Months Ended
Dec. 31, 2017
WEIGHTED AVERAGE COMMON SHARES [Abstract]  
Weighted average number of common shares used to compute basic and diluted income per share
The weighted average number of common shares used to compute basic and diluted income per share for the years ended December 31, 2017, 2016 and 2015, respectively were as follows:

  
Year Ended December 31,
 
  
2017
  
2016
  
2015
 
Basic shares outstanding
  
23,906,395
   
23,453,427
   
23,166,977
 
Dilutive effect of stock options
  
-
   
-
   
-
 
Diluted shares outstanding
  
23,906,395
   
23,453,427
   
23,166,977