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Note 3 - Earnings Per Share (Tables)
3 Months Ended
Mar. 31, 2021
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended
 
   
March 31,
 
   
2021
   
2020
 
Basic earnings per share calculation:
     
 
     
 
Net (loss) income
  $
(1,210
)   $
954
 
Weighted average number of common shares outstanding
   
17,178,136
     
16,596,236
 
Basic net (loss) income per share
  $
(0.07
)   $
0.06
 
Diluted earnings per share calculation:
     
 
     
 
Net (loss) income
  $
(1,210
)   $
954
 
Weighted average number of common shares outstanding
   
17,178,136
     
16,596,236
 
Common stock equivalents:
               
Non-vested stock awards (1)
   
     
137,038
 
Weighted average number of common shares outstanding
   
17,178,136
     
16,733,274
 
Diluted net (loss) income per share
  $
(0.07
)   $
0.06