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Segment Reporting (Tables)
 12 Months Ended
Dec. 30, 2017
Segment Reporting [Abstract]  
Average percentage of sales by product categories (in hundredths)
The following table indicates the percentage of net sales represented by each major product category during fiscal 2017, 2016, and 2015:
 
Percent of Net Sales
Product Category:
2017
 
2016
 
2015
Livestock and Pet
47
%
 
46
%
 
44
%
Hardware, Tools and Truck
22

 
22

 
23

Seasonal, Gift and Toy Products
19

 
19

 
20

Clothing and Footwear
8

 
8

 
8

Agriculture
4

 
5

 
5

Total
100
%
 
100
%
 
100
%