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Note 8 - Loss Per Share (Tables)
3 Months Ended
Apr. 30, 2020
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended April 30,
 
   
2020
   
2019
 
Basic weighted average common shares outstanding
   
8,048
     
7,887
 
Dilutive effect of equity compensation plans
   
-
     
-
 
Weighted average common shares outstanding assuming full dilution
   
8,048
     
7,887
 
                 
Stock options not included in the computation of diluted earnings per share of common stock because the option exercise prices exceeded the average market prices of the common shares
   
77
     
126
 
Stock options with an exercise price below the average market price
   
274
     
82