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NET INCOME PER COMMON SHARE AND EQUITY PER COMMON SHARE (Tables)
12 Months Ended
Dec. 31, 2015
NET INCOME PER COMMON SHARE AND EQUITY PER COMMON SHARE [Abstract]  
Shares Used in Computing Basic and Diluted Net Income per Share
Basic net income per share is based on the weighted average number of common shares outstanding. Diluted net income per share is based on the weighted average number of common shares outstanding and the potentially dilutive effect of employee stock options. The following table summarizes the shares used in computing basic and diluted net income per share:

 
For the Year
 
Ended December 31,
 
2015
 
2014
 
2013
 
(in thousands)
 
 
 
 
 
 
Weighted average common shares outstanding during the period for Basic computation
 
8,960
 
 
8,884
 
 
8,774
Dilutive effect of employee stock options
 
45
 
 
42
 
 
62
Weighted average common shares outstanding during the period for Diluted computation
 
9,005
 
 
8,926
 
 
8,836