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7. Income per Share(Tables)
9 Months Ended
Sep. 30, 2014
Income Per Sharetables  
Computation of basic and diluted (loss) income per share
    Three Months Ended     Nine months Ended  
    September 30, 2014     September 30, 2013     September 30, 2014     September 30, 2013  
Numerator:                        
Net  income (numerator for basic and diluted earnings per share)   $ 656     $ 514     $ 1,802     $ 1,116  
Denominator:                                
Denominator for basic earnings per share weighted average shares     13,655,988       13,580,471       13,641,520       13,563,486  
                                 
Effect of dilutive securities:                                
       Options     125,546       68,099       100,230       56,190  
                                 
Denominator                                
Denominator for diluted earnings per share weighted average shares     13,781,534       13,648,570       13,741,750       13,619,676  
                                 
                                 
Basic income per share   $ 0.05     $ 0.04     $ 0.13     $ 0.08  
Diluted income per share   $ 0.05     $ 0.04     $ 0.13     $ 0.08