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Note 16 - Quarterly Financial Information (Unaudited) (Tables)
 12 Months Ended
Jan. 28, 2017
Notes Tables  
Quarterly Financial Information [Table Text Block]
 
 
Fiscal Quarters Ended
 
 
 
January 28,
2017
 
 
October
29, 2016
 
 
July 30,
2016
 
 
April 30,
2016
 
 
January 30,
2016
 
 
October
31, 2015
 
 
August 1,
2015
 
 
May 2,
2015
 
                                                                 
Net revenue
   $
42,724
     $
62,729
     $
61,316
     $
53,775
     $
51,450
     $
61,581
     $
58,307
     $
55,912
  
Gross profit
    
21,401
      
30,995
      
29,582
      
24,001
      
24,501
      
30,787
      
28,524
      
29,348
  
(Loss) income from operations
    
(7,163
)
    
2,169
      
(313
)
    
(6,015
)
    
(5,237
)
    
1,464
      
1,208
      
1,410
  
Net (loss) income
   
(8,716
)
    
221
      
(1,722
)
    
(8,098
)
    
(6,191
)
    
6,435
      
296
      
(382
)
Basic net (loss) income per share
   $
(0.23
)
   $
0.01
     $
(0.05
)
   $
(0.22
)
   $
(0.17
)
   $
0.18
     $
0.01
     $
(0.01
)
Diluted net (loss) income per share
   $
(0.23
)
   $
0.01
     $
(0.05
)
   $
(0.22
)
   $
(0.17
)
   $
0.17
     $
0.01
     $
(0.01
)