Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Summary of Stock Options (Tables)

v3.21.2
Note 12 - Summary of Stock Options (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Share-based Payment Arrangement, Option, Activity [Table Text Block]
   

Number

   

Average

   

Remaining

   

Aggregate

 
   

of

   

Exercise

   

Contractual

   

Intrinsic

 
   

Shares

   

Price

   

Term (years)

   

Value

 

Options outstanding, beginning of period

    986,399     $ 19.10       -     $ -  

Options granted

    2,251,000     $ 2.73                  

Options exercised

    -                        

Options canceled

    (41,657 )   $ 23.35                  

Options outstanding, end of period

    3,195,742     $ 7.52       9.3     $ -  
                                 

Vested and exercisable and expected to vest, end of period

    2,932,744     $ 7.88       9.3     $ -  
                                 

Vested and exercisable, end of period

    581,757     $ 23.17       8.5     $ -  
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]
                       

Weighted

                 
       

Number

   

Weighted

   

Average

   

Number

   

Weighted

 
       

Outstanding

   

Average

   

Remaining

   

Exercisable

   

Average

 

Range of

 

as of

   

Exercise

   

Contractual

   

as of

   

Exercise

 

Exercise Prices

 

September 30, 2021

   

Price

   

Term (Years)

   

September 30, 2021

   

Price

 
                                             

$2.28

- $2.96     2,224,354     $ 2.73       9.7       130,533     $ 2.73  

$3.06

- $3.40     10,000     $ 3.20       9.5       -     $ -  

$4.45

- $4.80     11,900     $ 4.72       9.2       1,219     $ 4.80  

$5.10

- $5.40     88,000     $ 5.28       9.0       50,875     $ 5.40  

$6.90

- $6.90     5,400     $ 6.90       8.5       2,026     $ 6.90  

$8.60

- $8.91     837,150     $ 8.69       8.1       384,272     $ 8.69  

$10.90

- $13.60     15,500     $ 12.64       8.4       9,678     $ 12.99  

$380.00

- $9,920.00     3,438     $ 2,876.47       6.5       3,154     $ 2,968.91  

Total:

        3,195,742     $ 7.52       9.3       581,757     $ 23.17  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

Three Months Ended

   

Nine Months Ended

 
   

September 30,

   

September 30,

 
   

2021

   

2020

   

2021

   

2020

 
                                 

Expected term (in years)

    5       5       6       5  

Average volatility

    84 %     87 %     76 %     81 %

Risk-free interest rate

    0.81 %     0.27 %     0.97 %     0.34 %

Dividend yield

    0 %     0 %     0 %     0 %
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three Months Ended

   

Nine Months Ended

 
   

September 30,

   

September 30,

 
   

2021

   

2020

   

2021

   

2020

 
                                 

Cost of revenue

  $ 76     $ 42     $ 191     $ 163  

Research and development

    131       78       330       250  

Selling, general and administrative

    881       522       2,244       1,596  

Total

  $ 1,088     $ 642     $ 2,765     $ 2,009