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Note 8 - Share-based Compensation (Tables)
 9 Months Ended
Sep. 30, 2021
Notes Tables  
Nonvested Restricted Stock Shares Activity [Table Text Block]
          

Grant Date

 
          

Fair Value of

 
          

Restricted

 
          

Stock that

 
      

Weighted

  

Vested During

 
  

Number of

  

Average Grant

  

The Year

 
  

Shares

  

Date Fair Value

  

(in thousands)

 
             

Unvested as of December 31, 2020

  -  $-     

Granted

  14,500   11.30     

Vested

  -   -  $- 

Forfeited

  -   -     

Unvested as of September 30, 2021

  14,500  $11.30