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Retirement Benefit Plans (Details 3) - USD ($) | 12 Months Ended
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Dec. 30, 2023 | Dec. 31, 2022
Balance at beginning of period | $ (23,412,638) |
Balance at end of period | (22,994,976) | $ (23,412,638)
Pension Benefit [Member] |  |
Net (loss)/gain | (35,084,405) | (36,956,587)
Prior service (cost) credit | 0 | 0
Total | (35,084,405) | (36,956,587)
Balance at beginning of period | (36,956,587) | (40,513,278)
Prior service cost | 0 | 66,252
Net loss (gain) | 1,371,460 | 1,560,299
Discount rate, amount | (1,794,084) | 26,408,548
Asset (gains)/losses deferred | 2,431,940 | (22,866,209)
Other | (137,134) | (1,612,199)
Balance at end of period | (35,084,405) | (36,956,587)
Other Postretirement Benefit [Member] |  |
Net (loss)/gain | 929,097 | 900,694
Prior service (cost) credit | 0 | 0
Total | 929,097 | 900,694
Balance at beginning of period | 900,694 | 241,621
Prior service cost | 4,241 | 4,241
Net loss (gain) | (67,581) | (8,214)
Discount rate, amount | (35,126) | 562,340
Asset (gains)/losses deferred | (35,897) | 27,311
Other | 162,766 | 73,395
Balance at end of period | $ 929,097 | $ 900,694

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