v3.22.2.2
Note 8 - Stock-based Compensation and Expense (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]
  

Number of restricted shares

  

Weighted-average grant date fair value

 
         

Non-vested shares, beginning of year

  3,018,788  $4.58 

Granted

  5,943,197   1.33 

Vested

  (2,222,770)  1.54 

Forfeited

  (2,139,872)  5.31 

Non-vested shares, September 30, 2022

  4,599,343  $1.50