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Note 8 - Net Income (Loss) Per Share Applicable to Common Stockholders
9 Months Ended
Sep. 30, 2018
Income Statement [Abstract]  
Note 8 - Net Income (Loss) Per Share Applicable to Common Stockholders

NOTE 8 — Net Income (Loss) per Share Applicable to Common Stockholders

 

The following table sets forth the computation of basic and diluted net income (loss) per share:

 

  

Three Months Ended

September 30,

 

Nine Months Ended

September 30,

   2018  2017  2018  2017
Numerator:            
Net income (loss)   $(45,257)  $414,101  $(408,528)  $1,289,831
                     
Denominator:                    
Weighted average common shares outstanding used in computing net income (loss) per share:                    

Basic

   5,883,109   6,261,460   6,166,017   6,047,869
Effect of dilutive stock options    —      868,173    —      888,341 
Diluted    5,883,109    7,129,633    6,166,017    6,936,210 
                     
Net income (loss) per share applicable to common stockholders:                    
Basic   $(0.01)  $0.07  $(0.07)  $0.21
Diluted   $(0.01)  $0.06  $(0.07)  $0.19

 

 

In the three and nine months ended September 30, 2018, 2,358,059 stock options were excluded in the calculation of diluted net loss per share because their effect would be anti-dilutive.