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NET INCOME PER COMMON SHARE AND EQUITY PER COMMON SHARE (Tables)
6 Months Ended
Jun. 30, 2012
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 Three Months
  
For the Six Months
 
   
Ended June 30,
  
Ended June 30,
 
   
2012
  
2011
  
2012
  
2011
 
   
(in thousands)
  
(in thousands)
 
Weighted average common shares outstanding
            
during the period for Basic computation
  8,651   7,672   8,638   7,662 
Dilutive effect of employee stock options
  35   42   36   44 
                  
Weighted average common shares outstanding
                
during the period for Diluted computation
  8,686   7,714   8,674   7,706