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Note 9 - Net Income (Loss) Per Share (Tables)
 12 Months Ended
Jan. 31, 2017
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
Years Ended
 
 
 
2017
 
 
2016
 
                 
Net income (income)
   $
845
    $
(1,346
 )
Basic net income (loss) per share:
                
Weighted-average shares outstanding-Basic
    
14,615
     
14,652
 
Basic net income (loss) per share
   $
0.06
    $
(0.09
 )
Diluted net income (loss) per share:
                
Weighted average shares outstanding - basic
    
14,615
     
14,652
 
Effect of potentially dilutive securities
    
2
     
-
 
Weighted average shares outstanding - diluted
    
14,617
     
14,652
 
Diluted net income (loss) per share
   $
0.06
    $
(0.09
 )