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Note 3 - Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
For the Years Ended December 31,
  
   
2020
    
2019
  
Basic earnings per share calculation:
      
 
      
 
Net loss
   $
(1,487
 )   $
(4,523
 )
Weighted average number of common shares outstanding
    
16,745,531
      
16,127,296
  
Basic net loss per share
   $
(0.09
 )   $
(0.28
 )
Diluted earnings per share calculation:
      
 
      
 
Net loss
   $
(1,487
 )   $
(4,523
 )
Weighted average number of common shares outstanding
    
16,745,531
      
16,127,296
  
Common stock equivalents:
                
Non-vested stock awards (1)
    
—
      
—
  
Weighted average number of common shares outstanding
    
16,745,531
      
16,127,296
  
Diluted net loss per share
   $
(0.09
 )   $
(0.28
 )