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Note 11 - Share-based Incentive Plan (Tables)
6 Months Ended
Jun. 30, 2022
Notes Tables  
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

Outstanding shares:

 

Common Shares

 
     

Balance at December 31, 2021

  295,471 

Granted

  389,823 

Forfeited

  (11,780)

Vested

  (95,947)

Balance at June 30, 2022

  577,567