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5. Calculation of Basic and Diluted Earnings per Share (Tables)
3 Months Ended
Mar. 31, 2017
Income (Loss) per common share:  
Schedule of Computation of Basic and Diluted Earnings Per Share
(in thousands, except per share amounts)   Three Months
Ended March 31,
    2017   2016
Numerator:        
Net (Loss) Income - basic and diluted $ (132) $ 244 
         
Denominator:        
Denominator for basic (loss) earnings per share -
weighted-average shares
  3,542    3,014 
Effect of dilutive securities:        
Employee stock options    
Warrants     172 
Dilutive potential common shares     173 
Denominator for diluted (loss) earnings per share -
weighted-average shares and assumed conversions
  3,542    3,187 
Basic and diluted (loss) earnings per common share $ (0.04) $ 0.08