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Note 12 - Net Income (Loss) Per Share (Tables)
 9 Months Ended
Jan. 01, 2017
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
 
 
Three Months Ended
 
 
Nine Months Ended
 
 
 
January 1,
 
 
December 27,
 
 
January 1,
 
 
December 27,
 
 
 
2017
 
 
2015
 
 
2017
 
 
2015
 
Net income (loss) from continuing operations
   $
(281
 )   $
(2,045
 )   $
7,345
    $
(6,489
 )
Net income (loss) from discontinued operations
   $
45,660
    $
(5,092
 )   $
47,982
    $
(7,355
 )
Net income (loss)
  $
45,379
    $
(7,137
 )   $
55,327
    $
(13,844
 )
Shares used in computation of net income (loss) from continuing operations per share:
                                
Basic
    
50,409
     
48,386
     
49,548
     
48,146
 
Effect of options and awards
    
-
     
-
     
713
     
-
 
Diluted
    
50,409
     
48,386
     
50,261
     
48,146
 
Shares used in computation of net income (loss) from discontinued operations per share:
                                
Basic
    
50,409
     
48,386
     
49,548
     
48,146
 
Effect of options and awards
    
956
     
-
     
713
     
-
 
Diluted
    
51,365
     
48,386
     
50,261
     
48,146
 
Shares used in computation of net income (loss) per share:
                                
Basic
    
50,409
     
48,386
     
49,548
     
48,146
 
Effect of options and awards
    
956
     
-
     
713
     
-
 
Diluted
    
51,365
     
48,386
     
50,261
     
48,146
 
Net income (loss) per share from continuing operations:
                                
Basic
   $
(0.01
 )   $
(0.04
 )   $
0.15
    $
(0.13
 )
Diluted
   $
(0.01
 )   $
(0.04
 )   $
0.15
    $
(0.13
 )
Net income (loss) per share from discontinued operations:
                                
Basic
  $
0.91
    $
(0.11
 )   $
0.97
    $
(0.15
 )
Diluted
  $
0.89
    $
(0.11
 )   $
0.95
    $
(0.15
 )
Net income (loss) per share:
                                
Basic
  $
0.90
    $
(0.15
 )   $
1.12
    $
(0.28
 )
Diluted
  $
0.88
    $
(0.15
 )   $
1.10
    $
(0.28
 )