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Note 7 - Loss Per Share
 12 Months Ended
Dec. 31, 2018
Notes to Financial Statements  
Earnings Per Share [Text Block]
NOTE
7
- LOSS PER SHARE
 
The following table presents the shares used in the basic and diluted loss per common share computations:
 
    Year Ended
December 31,
    2018   2017
Numerator:        
Net loss available in basic and diluted   $
(10,086,477
 )   $
(6,003,017
 )
                 
Denominator:                
Weighted average common shares outstanding-basic    
12,816,289
      
6,362,989
  
                 
Effect of dilutive stock options warrants and preferred stock (1)    
-
      
-
  
                 
Weighted average common shares outstanding-diluted    
12,816,289
      
6,362,989
  
                 
Loss per common share-basic and diluted   $
(0.79
 )   $
(0.94
 )
 
(
1
) The number of shares underlying options and warrants outstanding as of
December 31, 2018
and
December 31, 2017
are
7,295,921
and
4,716,240,
respectively. The number of shares underlying the preferred stock as of
December 31, 2018
is
79,246
for Series B Convertible. The number of shares underlying the convertible debt is
3,294,087.
The effect of the shares that would be issued upon exercise of such options, warrants, convertible debt and preferred stock has been excluded from the calculation of diluted loss per share because those shares are anti-dilutive.