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Note 4 - Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2023
Notes Tables  
Schedule of Weighted Average Number of Shares [Table Text Block]
  

For the Three

 
  

Months Ended

 
  

March 31,

 
  

2023

  

2022

 
         

Weighted-average common shares issued

  9,921,529   7,338,283 
         

Average treasury stock shares

  (1,782,758)  (1,459,258)
         

Weighted-average common shares and common stock equivalents used to calculate basic earnings per share

  8,138,771   5,879,025 
         

Additional common stock equivalents (stock options and restricted stock) used to calculate diluted earnings per share

  13,858   10,811 
         

Weighted-average common shares and common stock equivalents used to calculate diluted earnings per share

  8,152,629   5,889,836