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Note J - Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Year Ended December 31,
In thousands, except per share amounts
  
2020
  
2019
Numerator:
                
Net loss
   $
(1,694
 )   $
(26,264
 )
Less: Preferred stock dividend
  
496
  
496
Numerator for basic EPS: loss attributable to common stockholders
  
(2,190
 )  
(26,760
 )
                 
Denominator:
                
Basic EPS denominator: weighted-average common shares outstanding
  
6,469
  
6,284
                 
Basic loss per common share
   $
(0.34
 )   $
(4.26
 )
Diluted loss per common share
   $
(0.34
 )   $
(4.26
 )