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Note 7 - Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2023
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

Three months ended

March 31,

 
   

2023

   

2022

 
                 

Basic weighted average common shares outstanding

    6,773,285       6,725,042  

Effect of potentially dilutive share-based awards

    -       -  

Diluted weighted average shares outstanding

    6,773,285       6,725,042