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Retirement Benefit Plans (Details 3) - USD ($) | 12 Months Ended
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Dec. 28, 2024 | Dec. 30, 2023
Pension Benefit [Member] |  |
Net (loss)/gain | $ (31,287,987) | $ (35,084,405)
Prior service (cost) credit | 0 | 0
Total | (31,287,987) | (35,084,405)
Balance at beginning of period | (35,084,405) | (36,956,587)
Prior service cost | 0 | 0
Net loss (gain) | 1,309,455 | 1,371,460
Discount rate, amount | 4,449,660 | (1,794,084)
Asset (gains)/losses deferred | (2,149,183) | 2,431,940
Other | 186,486 | (137,134)
Balance at end of period | (31,287,987) | (35,084,405)
Other Postretirement Benefit [Member] |  |
Net (loss)/gain | 1,045,379 | 929,097
Prior service (cost) credit | 21,092 | 0
Total | 1,066,471 | 929,097
Balance at beginning of period | 929,097 | 900,694
Prior service cost | 4,241 | 4,241
Net loss (gain) | (78,267) | (67,581)
Discount rate, amount | 81,579 | (35,126)
Asset (gains)/losses deferred | 0 | (35,897)
Other | 85,064 | 162,766
Balance at end of period | 1,066,471 | $ 929,097
Plan amendments | $ 44,757 |

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