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Note 17 - Convertible Redeemable Preferred Stock (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
  

Shares under

Option

  

Weighted

Average

Exercise

Price

 

Balance at December 31, 2020

  195,160  $1.00 

Granted

  128,572   1.75 

Cancelled/Expired

  -   1.00 

Exercised/Issued

  (195,160)  1.00 

Outstanding at December 31, 2021

  128,572   1.75 
         

Exercisable at December 31, 2021

  128,572  $1.75