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Note J - Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended September 30,
  
In thousands, except per share amounts
  
2020
    
2019
  
Numerator:                
Net loss
   $
(1,621
 )   $
(5,988
 )
Less: Preferred stock dividends
    
125
      
125
  
Numerator for basic EPS: loss attributable to common stockholders
    
(1,746
 )   $
(6,113
 )
                 
Denominator:
      
 
      
 
Basic EPS denominator: weighted-average common shares outstanding
    
6,523
      
6,291
  
                 
Diluted EPS denominator    
6,523
      
6,291
  
                 
Basic loss per Common Share
   $
(0.27
 )   $
(0.97
 )
Diluted loss per Common Share
   $
(0.27
 )   $
(0.97
 )
   
Nine Months Ended September 30,
  
In thousands, except per share amounts
  
2020
    
2019
  
Numerator:
                
Net loss
   $
(2,738
 )   $
(23,318
 )
Less: Preferred stock dividend
    
372
      
371
  
Numerator for basic EPS: loss attributable to common stockholders
    
(3,110
 )    
(23,689
 )
                 
Denominator:
                
Basic EPS denominator: weighted-average common shares outstanding
    
6,432
      
6,277
  
                 
Diluted EPS denominator
    
6,432
      
6,277
  
                 
Basic loss per Common Share
   $
(0.48
 )   $
(3.77
 )
Diluted loss per Common Share
   $
(0.48
 )   $
(3.77
 )