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Note 20 - Selected Quarterly Financial Information (Unaudited) (Tables)
12 Months Ended
Dec. 29, 2012
Schedule of Quarterly Financial Information [Table Text Block]
   
Sales
   
Gross
Profit
   
Operating
Income
   
Net
Income
   
Diluted
Income
Per Share
 
1st Quarter
  $ 38,206     $ 10,285     $ 1,776     $ 1,059     $ 0.08  
2nd Quarter
    35,753       9,656       1,015       505       0.04  
3rd Quarter
    34,839       9,675       1,107       634       0.05  
4th Quarter
    37,019       10,099       1,330       1,029       0.09  
                                         
Total
  $ 145,817     $ 39,715     $ 5,228     $ 3,227     $ 0.26  
   
Sales
   
Gross
Profit
   
Operating
Income
   
Net
Income
   
Diluted
Income
Per Share
 
1st Quarter
  $ 38,706     $ 11,050     $ 2,057     $ 1,175     $ 0.09  
2nd Quarter
    36,514       10,460       2,023       1,242     $ 0.09  
3rd Quarter
    33,559       9,098       742       724     $ 0.06  
4th Quarter
    35,032       10,128       2,187       1,137     $ 0.09  
                                         
Total
  $ 143,811     $ 40,736     $ 7,009     $ 4,278     $ 0.33