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Post Retirement Benefits (Details) - USD ($) | 3 Months Ended | 6 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2020
Pension, health and life insurance expense: |  |  |  |  |
Multiemployer Plan, Employer Contribution, Cost | $ 145,000 | $ 231,000 | $ 391,000 | $ 462,000 |
Defined contribution plan contributions | 215,000 | 324,000 | 508,000 | 586,000 |
Total pension expense | 360,000 | 555,000 | 899,000 | 1,048,000 |
Interest cost | 59,000 | 72,000 | 118,000 | 144,000 |
Amortization of prior service costs | (124,000) | (125,000) | (248,000) | (250,000) |
Amortization of net loss | 45,000 | 29,000 | 90,000 | 58,000 |
Net periodic benefit cost | (20,000) | (24,000) | (40,000) | (48,000) |
Total post retirement benefits expense | 340,000 | $ 531,000 | 859,000 | $ 1,000,000 |
Payments to pension plans |  |  | 511,000 |  |
Payments for post retirement healthcare and life insurance |  |  | 91,000 |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |
Accrued Expected Pension Plan Payments | $ 839,000 |  | $ 839,000 |  |
Forecast [Member] |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |
Expected payments to pension plans |  |  |  |  | $ 1,385,000
Expected future payments for other post retirement benefits |  |  |  |  | $ 1,142,000

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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(5) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109237824&loc=SL108413299-114919 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4587-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(5) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 + Details
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