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7. Income per Share(Tables)
6 Months Ended
Jun. 30, 2013
Income Per Sharetables  
Computation of basic and diluted (loss) income per share
    Three Months Ended     Six Months Ended  
    June 30, 2013     June 30, 2012     June 30, 2013     June 30, 2012  
Numerator:                        
Net  income (numerator for basic and diluted earnings per share)   $ 197     $ 1,246     $ 602     $ 845  
Denominator:                                
Denominator for basic earnings per share weighted average shares     13,564,119       13,544,273       13,554,852       13,539,111  
                                 
Effect of dilutive securities:                                
       Options     89,584       868       25,118       1,740  
                                 
Denominator                                
Denominator for diluted earnings per share weighted average shares     13,653,703       13,545,141       13,579,970       13,540,851  
                                 
                                 
Basic income per share   $ 0.01     $ 0.09     $ 0.04     $ 0.06  
Diluted income per share   $ 0.01     $ 0.09     $ 0.04     $ 0.06