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Net Income (loss) Per Common Share (Tables)
9 Months Ended
Sep. 30, 2012
Net Income (loss) Per Common Share [Abstract]  
Computation of basic and diluted net income (loss) per common share
The following table sets forth the computation of basic and diluted net income (loss) per common share:

   
Nine Months Ended
  
Three Months Ended
 
   
September 30,
  
September 30,
 
   
2012
  
2011
  
2012
  
2011
 
Denominator:
            
Denominator for basic net income (loss) per share - weighted-average common shares
  4,616,000   4,660,000   4,551,000   4,660,000 
Effect of dilutive securities:
                
Employee and directors stock options
  -   25,000   20,000   26,000 
Unearned portion of restricted stock awards
  -   8,000   -   7,000 
Denominator for diluted net income (loss) per share - weighted-average common shares and assumed conversion
  4,616,000   4,693,000   4,571,000   4,693,000