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Note 8 - Stockholders' Equity (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
      

 

  

Weighted Average

 
      

Weighted Average

  

Remaining

 

 

 

Shares

  

Exercise Price

  

Contractual Life (Years)

 

Outstanding as of December 31, 2021

  1,192,085  $3.57   3.75 

Issued

  -   -   - 
Expired  -   -   - 

Outstanding as of September 30, 2022

  1,192,085  $3.57   3.00 
             

Exercisable as of September 30, 2022

  1,192,085  $3.57   3.00