Annual report pursuant to Section 13 and 15(d)

Note 15 - Stock-based Compensation (Tables)

v3.24.1.u1
Note 15 - Stock-based Compensation (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]
   

Awards Reserved for Issuance

   

Awards Exercised

   

Awards Outstanding

   

Awards Available for Grant

 
                                 

2016 Equity Incentive Plan

    2,000,000       —       2,489       1,997,511  

2018 Equity Incentive Plan

    43,976,425       40,221       245,871       43,690,333  

2019 Equity Incentive Plan

    55,000,000       349       119,992       54,879,659  
Share-Based Payment Arrangement, Cost by Plan [Table Text Block]
    (in thousands, except for shares / options) For the Year Ended  
   

December 31, 2023

   

December 31, 2022

 

Type of Award

 

Number of Shares or Options Granted

   

Stock-Based Compensation Expense

   

Number of Shares or Options Granted

   

Stock- Based Compensation Expense

 
                                 

Stock Options

    192,442     $ 525       10,750     $ 3,659  
                                 

Stock Grants:

                               

Employees (Common Stock)

    —       —       21,000       352  

Directors (Common Stock)

    —       —       9,431       213  

Non–Employee Consultants (Common Stock)

    1,721,186       1,910       169,062       695  

Total Stock–Based Compensation Expense

          $ 2,435             $ 4,919  
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
   

Number of Shares

   

Weighted-Average Exercise Price Per Share

   

Weighted-Average Remaining Contractual Life (in Years)

   

Aggregate Intrinsic Value of In-the-Money Options

 

Options Outstanding as of December 31, 2021

    882,514     $ 41.00                  

Granted

    10,750     $ 23.00                  

Exercised

    (1,462 )   $ 8.00                  

Forfeited

    (193,651 )   $ 15.00                  

Expired

    (169,940 )   $ 41.00                  

Options Outstanding as of December 31, 2022

    528,211     $ 20.00                  

Granted

    192,442     $ 1.00                  

Forfeited

    (351,352 )   $ 22.00                  

Options Outstanding as of December 31, 2023

    369,301     $ 13.00       8.3 years     $ —  

Options Exercisable as of December 31, 2023

    351,806     $ 13.00       8.3 years     $ 161  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

Year Ended December 31,

 
   

2023

   

2022

 

Expected Term (in Years)

    5.0       5.2  

Volatility

    121.2 %     103.0 %

Risk-Free Interest Rate

    4.8 %     0.9 %

Dividend Yield

    0 %     0 %