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Post Retirement Benefits (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Pension, health and life insurance expense: |  |  |  |
Multi-employer plan | $ 211,000 | $ 274,000 | $ 425,000 | $ 513,000
Defined contribution plan | 432,000 | 441,000 | 938,000 | 969,000
Total pension expense | 643,000 | 715,000 | 1,363,000 | 1,482,000
Interest cost | 23,000 | 67,000 | 46,000 | 132,000
Amortization of prior service credits | (124,000) | (124,000) | (248,000) | (248,000)
Amortization of net loss | (37,000) | 5,000 | (74,000) | 11,000
Net periodic benefit credit | (138,000) | (52,000) | (276,000) | (105,000)
Total post-retirement benefits expense | 505,000 | $ 663,000 | 1,087,000 | $ 1,377,000
Pension Plan |  |  |  |
Pension, health and life insurance expense: |  |  |  |
Payments made to pension plans |  |  | 1,655,000 |
Pension plan payments expected to be made in fiscal year | 953,000 |  | 953,000 |
Pension plan payments accrued | 104,000 |  | 104,000 |
Other Postretirement Benefits Plan |  |  |  |
Pension, health and life insurance expense: |  |  |  |
Payments for post retirement healthcare and life insurance |  |  | 553,000 |
Pension plan payments expected to be made in fiscal year | 104,000 |  | 104,000 |
Pension plan payments accrued | $ 104,000 |  | $ 104,000 |

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