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Note 9 - Income Taxes (Tables)
9 Months Ended
Oct. 01, 2017
Notes Tables  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
   
Three-Month Periods E
nded
   
Nine-Month Periods E
nded
 
   
October
1
,
   
September
25
,
   
October
1
,
   
September
25
,
 
   
201
7
   
2016
   
201
7
   
2016
 
Current Income Tax Provision:
                               
Foreign
  $
48
    $
12
    $
199
    $
(1
)
Federal
   
14
     
21
     
42
     
38
 
State
   
4
     
4
     
12
     
11
 
Deferred Income Tax Provision
   
38
     
55
     
117
     
165
 
Total
  $
104
    $
92
    $
370
    $
213
 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   
Nine-Month P
erio
ds E
nded
 
   
October
1
,
   
September
25
,
 
   
2017
   
2016
 
                 
Income Before Income Taxe
s
  $
4,226
    $
1,952
 
                 
Income Tax Provisio
n
   
370
     
213
 
                 
Effective Income Tax Rate
   
8.8
%    
10.9
%