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Postretirement Benefits (Tables)
 12 Months Ended
Dec. 30, 2012
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
Schedule of Net Funded Status [Table Text Block]
The following was the plan status and accumulated postretirement benefit obligation (APBO) at December 30, 2012 and January 1, 2012:
 
 
December 30, 2012
 
January 1, 2012
Change in benefit obligation:
 
 
 
Benefit obligation at beginning of year
$
2,055

 
$
1,845

Service cost
60

 
7

Interest cost
106

 
87

Plan participants' contributions
72

 
67

Actuarial loss
581

 
350

Benefits paid
(269
)
 
(318
)
Medicare part D prescription drug subsidy
17

 
17

Benefit obligation at end of year
$
2,622

 
$
2,055

Change in plan assets:
 

 
 

Fair value of plan assets at beginning of year
$
—

 
$
—

Employer contributions
180

 
234

Plan participants' contributions
72

 
67

Benefits paid
(269
)
 
(318
)
Medicare part D prescription drug subsidy
17

 
17

Fair value of plan assets at end of year
—

 
—

Funded status
$
(2,622
)
 
$
(2,055
)
Weighted average assumptions:
 

 
 

Discount rate used to determine benefit obligations
3.64
%
 
4.40
%
Discount rate used to determine net periodic benefit cost
4.40
%
 
5.54
%
Schedule of Net Benefit Costs [Table Text Block]
Components of net periodic postretirement benefit income recognized in the consolidated statements of operations were:  
 
Year ended
 
December 30, 2012
 
January 1, 2012
 
January 2, 2011
Service cost
$
60

 
$
7

 
$
23

Interest cost
106

 
87

 
103

Amortization of net gains and losses
134

 
84

 
95

Amortization of prior service credit
(359
)
 
(359
)
 
(360
)
Net periodic postretirement benefit income
$
(59
)
 
$
(181
)
 
$
(139
)
Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]
Amounts recognized in accumulated other comprehensive income that have not yet been recognized as components of net periodic benefit income, consisted of:
 
Year ended
 
December 30, 2012
 
January 1, 2012
Prior service credit
$
3,394

 
$
3,753

Net loss
(2,311
)
 
(1,864
)
Deferred income taxes
(414
)
 
(736
)
Accumulated other comprehensive income
$
669

 
$
1,153
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
The following table reflects the changes in accumulated other comprehensive income for the years ended December 30, 2012 and January 1, 2012:  
 
Year ended
 
December 30, 2012
 
January 1, 2012
Net actuarial loss
$
581

 
$
350

Amortization of net loss
(134
)
 
(84
)
Amortization of prior service credit
359

 
359

Deferred income taxes
(322
)
 
(243
)
Total recognized in accumulated other comprehensive loss
$
484

 
$
382
Schedule of Health Care Cost Trend Rates [Table Text Block]
Assumed health care cost trend rates at year end were as follows:  
 
December 30, 2012
 
January 1, 2012
 
January 2, 2011
Medical benefits cost trend rate assumed for the following year pre-65
8.00
%
 
8.00
%
 
9.00
%
Medical benefits cost trend rate assumed for the following year post-65
6.00
%
 
6.50
%
 
7.00
%
Prescription drug benefit cost trend rate assumed for the following year
7.00
%
 
7.50
%
 
8.00
%
Rate to which the cost trend rate is assumed to decline (the ultimate trend rate)
5.00
%
 
5.00
%
 
5.00
%
Year that the rate reaches the ultimate trend rate
2021

 
2017

 
2017
Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]
A one-percentage-point change in the health care cost trend rates would have the following effects:  
 
1% Increase
 
1% Decrease
Effect on total of service and interest cost components
$
29

 
$
(23
)
Effect on postretirement benefit obligation
325

 
(261
)