Quarterly report pursuant to Section 13 or 15(d)

Note 8 - Stockholders' Equity (Tables)

v3.22.2.2
Note 8 - Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
   

Options

 

Outstanding at December 31, 2020

    6,007,552  

Granted

    637,500  

Exercised

     

Forfeited/canceled

    (272,029 )

Expired

    (126,557 )

Outstanding at December 31, 2021

    6,246,466  

Granted

    1,195,000  

Exercised

     

Forfeited/canceled

    (330,623 )

Expired

    (484,209 )

Outstanding at September 30, 2022

    6,626,634  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

Nine Months Ended

 
   

September 30,

 
   

2022

   

2021

 

Risk-free interest rate

    2.47 %     1.00 %

Expected life (years)

    5.90       6.00  

Expected dividend yield

    %     %

Expected volatility

    69.23 %     73.99 %
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
   

Shares

 

Outstanding at December 31, 2020

    1,436,728  

Awarded

    654,663  

Released

     

Canceled/forfeited/expired

    (406,250 )

Outstanding at December 31, 2021

    1,685,141  

Awarded

    197,688  

Released

     

Canceled/forfeited/expired

     

Outstanding at September 30, 2022

    1,882,829  
         

Expected to vest at September 30, 2022

    1,882,829  

Vested at September 30, 2022

    1,882,829  

Unvested at September 30, 2022

     

Unrecognized expense at September 30, 2022

  $  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
   

Shares

   

Weighted Average Exercise Price

   

Weighted Average Remaining Contractual Term (Years)

 

Outstanding at December 31, 2020

    2,691,459     $ 1.99       2.94  

Granted

    580,231     $        

Exercised

        $        

Canceled/forfeited/expired

    (25,000 )   $        

Outstanding at December 31, 2021

    3,246,690     $ 2.26       3.59  

Granted

    5,928,261     $        

Exercised

    (3,188,190 )   $        

Canceled/forfeited/expired

        $        

Outstanding at September 30, 2022

    5,986,761     $ 2.72       2.02  
Restricted Stock Units (RSUs) [Member]  
Notes Tables  
Share-Based Payment Arrangement, Cost by Plan [Table Text Block]
   

Three Months Ended

   

Nine Months Ended

 
   

September 30,

   

September 30,

 
   

2022

   

2021

   

2022

   

2021

 

General and administrative

  $ 65,002     $ 65,000     $ 195,005     $ 195,005  

Sales and marketing

  $     $ 56,635     $     $ 116,347  
    $ 65,002     $ 121,635     $ 195,005     $ 311,352  
Stock Options and Warrants [Member]  
Notes Tables  
Share-Based Payment Arrangement, Cost by Plan [Table Text Block]
   

Three Months Ended

   

Nine Months Ended

 
   

September 30,

   

September 30,

 
   

2022

   

2021

   

2022

   

2021

 

General and administrative

  $ 65,800     $ 62,684     $ 571,462     $ 226,572  

Sales and marketing

    20,972       19,522       56,183       83,335  

Engineering, research, and development

    41,185       43,861       171,734       130,519  
    $ 127,957     $ 126,067     $ 799,379     $ 440,426