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RETIREMENT BENEFIT PLANS (Details) (USD $)
12 Months Ended
Dec. 28, 2013
Plan
Dec. 29, 2012
Plan
Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]      
Contributions made by Company     $ 5,000,000
Change in fair value of plan assets [Roll Forward]      
Employer contributions     5,000,000
Funded status [Abstract]      
Net amount recognized in the balance sheet (10,930,815) (20,181,361)  
Assumptions used to determine the projected benefit obligations [Abstract]      
Discount rate (in hundredths) 4.80% 3.90%  
Expected return on plan assets (in hundredths) 8.00% 8.00%  
Rate of compensation increase (in hundredths) 3.25% 3.25%  
Accumulated benefit obligation for all qualified and nonqualified defined benefit pension plans 71,403,778 66,735,124  
Pension plans with projected benefit obligation and accumulated benefit obligation in excess of plan assets [Abstract]      
Number of plans 5 [1] 6  
Projected benefit obligation 68,781,752 74,825,969  
Accumulated benefit obligation 68,974,332 66,735,124  
Fair value of plan assets 57,850,937 54,644,608  
Net amount recognized in accrued benefit liability (10,930,815) (20,181,361)  
Estimated future benefit payments to participants [Abstract]      
Period of horizon for various asset classes used in calculating expected long term rates of return 10 years    
Number of shares of employer common stock included plan assets (in shares) 193,624    
Value of employer common stock included plan assets 3,082,494 3,063,132  
Dividends received from employer common stock 81,322 96,812  
Health care cost trend rate for participants after January 1, 1991 (in hundredths) 0.00%    
Ultimate health care cost trend rate (in hundredths) 4.50%    
Effect of one-percentage-point change in assumed health care cost trend rates on postretirement benefit plan [Abstract]      
Percentage of voluntary contributions allowed to participants, maximum (in hundredths) 100.00%    
Employer contributions made 194,068 187,531 179,400
Equity Securities [Member]
     
Estimated future benefit payments to participants [Abstract]      
Long-term target allocations for plan assets (in hundredths) 50.00%    
Long Duration Fixed Income [Member]
     
Estimated future benefit payments to participants [Abstract]      
Long-term target plan asset allocations relating to fixed income (in hundredths) 20.00%    
Fixed income [Member]
     
Estimated future benefit payments to participants [Abstract]      
Long-term target allocations for plan assets (in hundredths) 50.00%    
Pension Benefits [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Contributions made by Company 3,254,635 3,778,692  
Components of the net periodic benefit cost [Abstract]      
Service cost 3,028,863 2,642,373 2,141,306
Interest cost 2,840,622 2,868,528 2,949,672
Expected return on plan assets (4,827,393) (3,930,988) (3,650,282)
Amortization of prior service cost 256,459 221,049 194,148
Amortization of the net loss 1,844,139 1,111,900 897,052
Net periodic benefit cost 3,142,690 2,912,862 2,531,896
Assumptions used to determine net periodic benefit cost [Abstract]      
Discount rate (in hundredths) 3.90% 4.55% 5.35%
Expected return on plan assets (in hundredths) 8.00% 8.00% 8.50%
Rate of compensation increase (in hundredths) 3.25% 3.25% 4.25%
Change in benefit obligation [Roll Forward]      
Benefit obligation at beginning of year 74,825,969 64,709,379  
Change due to availability of final actual assets and census data 0 0  
Plan amendment 132,378 831,201  
Service cost 3,028,863 2,642,373 2,141,306
Interest cost 2,840,622 2,868,528 2,949,672
Actuarial (gain)/loss (7,187,997) 6,117,680  
Benefits paid (2,428,637) (2,343,192)  
Benefit obligation at end of year 71,211,198 74,825,969 64,709,379
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at beginning of year 54,644,608 48,897,760  
Change due to availability of final actual assets and census data 0 0  
Actual return on plan assets 4,880,381 4,311,348  
Employer contributions 3,254,635 3,778,692  
Benefits paid (2,428,637) (2,343,192)  
Fair value of plan assets at end of year 60,350,987 54,644,608 48,897,760
Funded status [Abstract]      
Net amount recognized in the balance sheet (10,860,211) (20,181,361)  
Amounts recognized in accumulated other comprehensive income [Abstract]      
Net loss (19,261,651) (28,346,776)  
Prior service (cost) credit (813,855) (937,936)  
Total (20,075,506) (29,284,712) (24,049,140)
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]      
Balance at beginning of period (29,284,712) (24,049,140)  
Change due to availability of final actual assets and census data 0 0  
Charged to net periodic benefit cost [Abstract]      
Prior service cost 256,459 221,049 194,148
Net loss (gain) 1,844,139 1,111,900 897,052
Other changes [Abstract]      
Liability (gains)/losses 7,108,608 (6,568,521)  
Balance at end of period (20,075,506) (29,284,712) (24,049,140)
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]      
Net (loss) gain 944,130    
Prior service cost (credit) 218,585    
Pension plans with projected benefit obligation and accumulated benefit obligation in excess of plan assets [Abstract]      
Net amount recognized in accrued benefit liability (10,860,211) (20,181,361)  
Estimated future benefit payments to participants [Abstract]      
2014 2,800,000    
2015 2,900,000    
2016 3,000,000    
2017 3,100,000    
2018 3,200,000    
2019 through 2023 19,100,000    
Contributions expected to be made by Company in next fiscal year 2,500,000    
Fair value of plan assets 60,350,987 54,644,608 48,897,760
Number of plans excluded 1    
Over-funded amount 70,000    
Pension Benefits [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 3,082,494 3,063,132  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 3,082,494 3,063,132  
Pension Benefits [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 56,971,472 51,581,476  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 56,971,472 51,581,476  
Pension Benefits [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Pension Benefits [Member] | Common/Collective Trust Funds [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 204,874 193,497  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 204,874 193,497  
Pension Benefits [Member] | Common/Collective Trust Funds [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Pension Benefits [Member] | Common/Collective Trust Funds [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 204,874 193,497  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 204,874 193,497  
Pension Benefits [Member] | Common/Collective Trust Funds [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Pension Benefits [Member] | The Eastern Company Common Stock [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 3,082,494 3,063,132  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 3,082,494 3,063,132  
Pension Benefits [Member] | The Eastern Company Common Stock [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 3,082,494 3,063,132  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 3,082,494 3,063,132  
Pension Benefits [Member] | The Eastern Company Common Stock [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Pension Benefits [Member] | The Eastern Company Common Stock [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Pension Benefits [Member] | U.S. Large Cap [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 6,643,640 [2] 5,826,726  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 6,643,640 [2] 5,826,726  
Pension Benefits [Member] | U.S. Large Cap [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [2] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [2] 0  
Pension Benefits [Member] | U.S. Large Cap [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 6,643,640 [2] 5,826,726  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 6,643,640 [2] 5,826,726  
Pension Benefits [Member] | U.S. Large Cap [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [2] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [2] 0  
Pension Benefits [Member] | U.S. Small Cap [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 4,485,040 [3] 3,964,072  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 4,485,040 [3] 3,964,072  
Pension Benefits [Member] | U.S. Small Cap [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [3] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [3] 0  
Pension Benefits [Member] | U.S. Small Cap [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 4,485,040 [3] 3,964,072  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 4,485,040 [3] 3,964,072  
Pension Benefits [Member] | U.S. Small Cap [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [3] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [3] 0  
Pension Benefits [Member] | Concentrated Equity [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 5,578,600 [4] 4,899,023  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 5,578,600 [4] 4,899,023  
Pension Benefits [Member] | Concentrated Equity [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [4] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [4] 0  
Pension Benefits [Member] | Concentrated Equity [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 5,578,600 [4] 4,899,023  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 5,578,600 [4] 4,899,023  
Pension Benefits [Member] | Concentrated Equity [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [4] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [4] 0  
Pension Benefits [Member] | International Large Cap with Active Currency [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 7,788,246 [5] 6,999,997  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 7,788,246 [5] 6,999,997  
Pension Benefits [Member] | International Large Cap with Active Currency [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [5] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [5] 0  
Pension Benefits [Member] | International Large Cap with Active Currency [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 7,788,246 [5] 6,999,997  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 7,788,246 [5] 6,999,997  
Pension Benefits [Member] | International Large Cap with Active Currency [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [5] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [5] 0  
Pension Benefits [Member] | Emerging Market [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 3,231,355 [6] 3,017,350  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 3,231,355 [6] 3,017,350  
Pension Benefits [Member] | Emerging Market [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [6] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [6] 0  
Pension Benefits [Member] | Emerging Market [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 3,231,355 [6] 3,017,350  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 3,231,355 [6] 3,017,350  
Pension Benefits [Member] | Emerging Market [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [6] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [6] 0  
Pension Benefits [Member] | Intermediate Bond [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 15,817,474 [7] 14,368,745  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 15,817,474 [7] 14,368,745  
Pension Benefits [Member] | Intermediate Bond [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [7] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [7] 0  
Pension Benefits [Member] | Intermediate Bond [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 15,817,474 [7] 14,368,745  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 15,817,474 [7] 14,368,745  
Pension Benefits [Member] | Intermediate Bond [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [7] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [7] 0  
Pension Benefits [Member] | 6 Year Target Duration LDI Fixed Income Fund [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 211,661 [8] 215,604  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 211,661 [8] 215,604  
Pension Benefits [Member] | 6 Year Target Duration LDI Fixed Income Fund [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 6 Year Target Duration LDI Fixed Income Fund [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 211,661 [8] 215,604  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 211,661 [8] 215,604  
Pension Benefits [Member] | 6 Year Target Duration LDI Fixed Income Fund [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 8 Year Target Duration LDI Fixed Income Fund [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 211,101 [8] 214,968  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 211,101 [8] 214,968  
Pension Benefits [Member] | 8 Year Target Duration LDI Fixed Income Fund [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 8 Year Target Duration LDI Fixed Income Fund [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 211,101 [8] 214,968  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 211,101 [8] 214,968  
Pension Benefits [Member] | 8 Year Target Duration LDI Fixed Income Fund [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 10 Year Target Duration LDI Fixed Income Fund [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 316,556 [8] 306,535  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 316,556 [8] 306,535  
Pension Benefits [Member] | 10 Year Target Duration LDI Fixed Income Fund [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 10 Year Target Duration LDI Fixed Income Fund [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 316,556 [8] 306,535  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 316,556 [8] 306,535  
Pension Benefits [Member] | 10 Year Target Duration LDI Fixed Income Fund [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 12 Year Target Duration LDI Fixed Income Fund [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 845,278 [8] 824,342  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 845,278 [8] 824,342  
Pension Benefits [Member] | 12 Year Target Duration LDI Fixed Income Fund [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 12 Year Target Duration LDI Fixed Income Fund [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 845,278 [8] 824,342  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 845,278 [8] 824,342  
Pension Benefits [Member] | 12 Year Target Duration LDI Fixed Income Fund [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 14 Year Target Duration LDI Fixed Income Fund [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 1,108,960 [8] 1,087,074  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 1,108,960 [8] 1,087,074  
Pension Benefits [Member] | 14 Year Target Duration LDI Fixed Income Fund [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 14 Year Target Duration LDI Fixed Income Fund [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 1,108,960 [8] 1,087,074  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 1,108,960 [8] 1,087,074  
Pension Benefits [Member] | 14 Year Target Duration LDI Fixed Income Fund [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 16 Year Target Duration LDI Fixed Income Fund [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 475,035 [8] 426,544  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 475,035 [8] 426,544  
Pension Benefits [Member] | 16 Year Target Duration LDI Fixed Income Fund [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | 16 Year Target Duration LDI Fixed Income Fund [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 475,035 [8] 426,544  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 475,035 [8] 426,544  
Pension Benefits [Member] | 16 Year Target Duration LDI Fixed Income Fund [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [8] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [8] 0  
Pension Benefits [Member] | Long Duration Fixed Credit [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 7,363,673 [9] 6,684,999  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 7,363,673 [9] 6,684,999  
Pension Benefits [Member] | Long Duration Fixed Credit [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [9] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [9] 0  
Pension Benefits [Member] | Long Duration Fixed Credit [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 7,363,673 [9] 6,684,999  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 7,363,673 [9] 6,684,999  
Pension Benefits [Member] | Long Duration Fixed Credit [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 [9] 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 [9] 0  
Pension Benefits [Member] | Insurance Contracts [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 2,689,979 2,552,000  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 2,689,979 2,552,000  
Pension Benefits [Member] | Insurance Contracts [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Pension Benefits [Member] | Insurance Contracts [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 2,689,979 2,552,000  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 2,689,979 2,552,000  
Pension Benefits [Member] | Insurance Contracts [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Postretirement Benefits [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Contributions made by Company 34,565 71,655  
Components of the net periodic benefit cost [Abstract]      
Service cost 202,568 173,613 126,464
Interest cost 142,086 143,388 136,752
Expected return on plan assets (73,920) (46,255) (52,920)
Amortization of prior service cost (23,888) (23,889) (23,888)
Amortization of the net loss (4,608) (50,784) (46,380)
Net periodic benefit cost 242,238 196,073 140,028
Assumptions used to determine net periodic benefit cost [Abstract]      
Discount rate (in hundredths) 3.90% 4.55% 5.35%
Expected return on plan assets (in hundredths) 8.00% 8.00% 8.50%
Change in benefit obligation [Roll Forward]      
Benefit obligation at beginning of year 3,712,505 3,069,155  
Change due to availability of final actual assets and census data 0 151,397  
Plan amendment 0 0  
Service cost 202,568 173,613 126,464
Interest cost 142,086 143,388 136,752
Actuarial (gain)/loss (498,446) 301,076  
Benefits paid (138,238) (126,124)  
Benefit obligation at end of year 3,420,475 3,712,505 3,069,155
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at beginning of year 1,204,779 1,215,998  
Change due to availability of final actual assets and census data 12,577 (3,005)  
Actual return on plan assets 73,920 46,255  
Employer contributions 34,565 71,655  
Benefits paid (138,238) (126,124)  
Fair value of plan assets at end of year 1,187,603 1,204,779 1,215,998
Funded status [Abstract]      
Net amount recognized in the balance sheet (2,232,872) (2,507,726)  
Amounts recognized in accumulated other comprehensive income [Abstract]      
Net loss (115,052) (621,467)  
Prior service (cost) credit 111,508 135,396  
Total (3,544) (486,071) 44,080
Defined Benefit Plan, Change in components of accumulated other comprehensive income [Abstract]      
Balance at beginning of period (486,071) 44,080  
Change due to availability of final actual assets and census data 12,577 (154,402)  
Charged to net periodic benefit cost [Abstract]      
Prior service cost (23,888) (23,889) (23,888)
Net loss (gain) (4,608) (50,784) (46,380)
Other changes [Abstract]      
Liability (gains)/losses 498,446 (301,076)  
Balance at end of period (3,544) (486,071) 44,080
Amounts that will be amortized from accumulated other comprehensive income in next fiscal year [Abstract]      
Net (loss) gain 0    
Prior service cost (credit) 24,000    
Pension plans with projected benefit obligation and accumulated benefit obligation in excess of plan assets [Abstract]      
Net amount recognized in accrued benefit liability (2,232,872) (2,507,726)  
Estimated future benefit payments to participants [Abstract]      
2014 164,000    
2015 172,000    
2016 184,000    
2017 193,000    
2018 202,000    
2019 through 2023 1,186,000    
Contributions expected to be made by Company in next fiscal year 63,000    
Fair value of plan assets 1,187,603 1,204,779 1,215,998
Life insurance cost trend rate (in hundredths) 1.00%    
Effect of one-percentage-point change in assumed health care cost trend rates on postretirement benefit plan [Abstract]      
Effect of 1-percentage point increase on total of service and interest cost components 58,361    
Effect of 1-percentage point decrease on total of service and interest cost components (47,201)    
Effect of 1-percentage point increase on postretirement benefit obligation 514,000    
Effect of 1-percentage point decrease on postretirement benefit obligation (423,068)    
Postretirement Benefits [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Postretirement Benefits [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Postretirement Benefits [Member] | Level 3 [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Contributions made by Company 34,565 71,655  
Change in benefit obligation [Roll Forward]      
Benefits paid (138,238) (126,124)  
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at beginning of year 1,204,779 1,215,998  
Change due to availability of final actual assets and census data 12,577 (3,005)  
Actual return on plan assets 73,920 46,255  
Employer contributions 34,565 71,655  
Benefits paid (138,238) (126,124)  
Fair value of plan assets at end of year 1,187,603 1,204,779  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 1,187,603 1,204,779  
Postretirement Benefits [Member] | Insurance Contracts [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 1,187,603 1,204,779  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 1,187,603 1,204,779  
Postretirement Benefits [Member] | Insurance Contracts [Member] | Level 1 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Postretirement Benefits [Member] | Insurance Contracts [Member] | Level 2 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 0 0  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets 0 0  
Postretirement Benefits [Member] | Insurance Contracts [Member] | Level 3 [Member]
     
Change in fair value of plan assets [Roll Forward]      
Fair value of plan assets at end of year 1,187,603 1,204,779  
Estimated future benefit payments to participants [Abstract]      
Fair value of plan assets $ 1,187,603 $ 1,204,779  
[1] Information relating to one of the Company’s pension plans is excluded from the above table as this plan was over-funded by approximately $70,000 at December 28, 2013.
[2] The investment objective of the large cap fund is to outperform the Russell 1000® Index. The fund is designed to provide for long-term growth of capital by utilizing a diversified group of quantitative investment strategies that seek to identify securities that have exposure to factors that the underlying advisors’ research has found to be predictive of future excess returns. The advisors’ portfolios are quantitatively structured to gain exposure to these predictive characteristics while minimizing unintended risk exposures.
[3] The small cap fund has an objective to outperform the Russell 2500® Index The fund is designed to achieve consistency by combining advisors whose complementary disciplined processes employ distinct methods for identifying small capitalization U.S. stocks with strong return potential. Advisors in the fund use a wide range of criteria and disciplines in their stock selection, focusing on factors such as: undervalued or under-researched companies, special situations, emerging growth, asset plays or turnarounds.
[4] The investment objective of the concentrated equity fund is to outperform the Russell 1000® Index. The fund is designed to achieve this by combining strategies with different payoffs over different phases of an economic and stock market cycle. To help achieve this objective, multiple advisors and strategies are employed to reduce “scenario risk.” These multiple strategies are in the form of multiple investment styles (e.g., growth, market oriented, and value), multiple sub-styles, and different ways of identifying undervalued securities.
[5] The international fund with active currency has an investment objective of outperforming the Russell Development ex-U.S. Large Cap Index Net. The fund is designed to provide the potential for long-term growth of capital by utilizing a diversified group of investment advisors that the Trustee’s manager’s research indicates will outperform over a full market cycle. The investment advisors’ portfolios are combined to form a fund that emphasizes their strengths while minimizing unintended risk exposures.
[6] The emerging market fund seeks to outperform the Russell Emerging Markets Index Net. The fund is designed to provide the potential for long-term growth of capital by utilizing a diversified market group of investment advisors that the Trustee’s manager’s research indicates will outperform over a full market cycle. The investment advisors’ portfolios are combined to form a fund that emphasizes their strengths while minimizing unintended risk exposures.
[7] Fixed income common fund investments have an investment objective of outperforming the Barclays Capital U.S. Aggregate Bond Index over a full market cycle. The fund is designed to provide current income, and as a secondary objective, capital appreciation through a variety of diversified strategies including sector rotation, modest interest rate timing, security selection and tactical use of high yield and emerging market bonds. The portfolio diversification provides protection against a single security or class of securities having a disproportionate impact on aggregate performance. To help achieve the objective, the fund is actively managed by multiple advisors who use a variety of investment strategies to create a broad market exposure. The fund’s advisors have distinct but complementary investment styles. These advisors generally have similar universes of investable securities but have different areas of specialization and expertise within intermediate duration securities.
[8] The Target Duration LDI Fixed Income Funds seek to outperform their respective Barclays-Russell LDI Indexes over a full market cycle. These Funds seek to provide current income, and as a secondary objective, capital appreciation through diversified strategies including sector rotation, modest interest rate timing, security selection and tactical use of high yield and emerging market bonds. The Funds will generally be used in combination with other bond funds to enable the plans to gain additional credit exposure within their asset portfolio, with the goal of reducing the mismatch between a plan’s assets and liabilities.
[9] The long duration fixed credit fund seeks to outperform the Barclays Capital Long Credit Index over a full market cycle. The fund seeks to provide current income, and as a secondary objective, capital appreciation through diversified strategies including sector rotation, modest interest rate timing, security selection and tactical use of high yield and emerging market bonds. The fund will generally be used in combination with other bond funds, with the goal of reducing the mismatch between a plan’s assets and liabilities.