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Employee Benefits (Detail Textuals 1)
12 Months Ended
Jan. 04, 2014
Asset allocation structure of the portfolio  
Compound annualized risk free rate 3.78%
Expected overall portfolio return percentage 8.35%
Percentage of estimated expense 0.50%
Net long term rate of return 7.85%
Equities
 
Asset allocation structure of the portfolio  
Asset allocation structure of the portfolio 65.00%
Equity securities - domestic
 
Asset allocation structure of the portfolio  
Target allocations for fiscal 2013 50.00%
Equity securities - international
 
Asset allocation structure of the portfolio  
Target allocations for fiscal 2013 15.00%
Fixed income
 
Asset allocation structure of the portfolio  
Asset allocation structure of the portfolio 30.00%
Target allocations for fiscal 2013 30.00%
Other
 
Asset allocation structure of the portfolio  
Asset allocation structure of the portfolio 5.00%
Target allocations for fiscal 2013 5.00%