Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Stock-based Compensation (Tables)

v3.22.2
Note 11 - Stock-based Compensation (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]

Option numbers are in (000s)

                       
           

Six months ended

June 30, 2022

         
   

Options

   

Weighted average

exercise price

   

Weighted average remaining

contractual

life (years)

 
                         

Outstanding, beginning of period

    15,112     $ 4.61          

Granted

    5,625       1.23          

Exercised

    (14 )     1.08          

Forfeited

    (1,567 )     2.87          

Outstanding, end of the period

    19,156       3.76       6.5  

Exercisable, end of the period

    10,656       4.65       4.8  

Vested and expected to vest, end of period

    17,879       3.83       6.4  

Option numbers are in (000s)

                       
           

Six months ended

June 30, 2021

         
   

Options

   

Weighted average

exercise price

   

Weighted average remaining

contractual

life (years)

 
                         

Outstanding, beginning of period

    11,942     $ 4.97          

Granted

    3,156       4.55          

Exercised

    (67 )     2.39          

Forfeited

    (800 )     5.67          

Outstanding, end of the period

    14,231       4.88       6.9  

Exercisable, end of the period

    8,001       4.60       5.7  

Vested and expected to vest, end of period

    13,296       4.85       6.8  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

Six months ended

June 30, 2022

   

Six months ended

June 30, 2021

 
                 

Risk-free interest rate

    2.07 %     0.43 %

Expected dividend yield

    -       -  

Expected volatility

    82.9 %     80.8 %

Expected life of options (in years)

 

5

   

5

 

Grant date fair value

  $ 0.82     $ 2.91  
Schedule of Share-based Payment Award, Options, Grants in Period [Table Text Block]

Option numbers are in (000s)

 

Six months ended
June 30, 2022

   

Six months ended
June 30, 2021

 
   

Number of options

   

Number of options

 

Cliff vesting after one year anniversary

    -       -  

3 year vesting (50%-25%-25%)

    425       430  

4 year vesting (50%-16 2/3%-16 2/3%-16 2/3%)

    5,200       2,726  

Total stock options granted in the period

    5,625       3,156  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three months ended

June 30,

   

Six months ended

June 30,

 
   

2022

   

2021

   

2022

   

2021

 
                                 

Research and development

  $ 537     $ 998     $ 1,483     $ 2,376  

General and administrative

    242       1,166       1,810       6,431  
    $ 779     $ 2,164     $ 3,293     $ 8,807