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Note 5 - Shareholders' Equity (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Share-based Payment Arrangement, Activity [Table Text Block]
  

Shares under

Option

  

Weighted

Average

Exercise

Price

 

Balance at December 31, 2020

  195,160  $1.00 

Granted

  -   1.00 

Cancelled/Expired

  -   1.00 

Exercised/Issued

  (195,160

)

  1.00 

Outstanding at June 30, 2021 

  -   1.00 
         

Exercisable at June 30, 2021

  -  $1.00