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Postretirement Benefit Plans (Expected Benefit Payments) (Details) | 12 Months Ended
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Dec. 31, 2020 USD ($)
Defined Benefit Postretirement Health And Life Coverage [Member] |
Defined Benefit Plan Disclosure [Line Items] |
1/1/2021 to 12/31/2021 | $ 36,000
1/1/2022 to 12/31/2022 | 37,000
1/1/2023 to 12/31/2023 | 34,000
1/1/2024 to 12/31/2024 | 31,000
1/1/2025 to 12/31/2025 | 32,000
1/1/2026 to 12/31/2030 | 170,000
Defined contribution plan, employer discretionary contribution amount | 36,000
Director's Retirement Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
1/1/2021 to 12/31/2021 | 100,000
1/1/2022 to 12/31/2022 | 102,000
1/1/2023 to 12/31/2023 | 102,000
1/1/2024 to 12/31/2024 | 83,000
1/1/2025 to 12/31/2025 | 85,000
1/1/2026 to 12/31/2030 | 328,000
Defined contribution plan, employer discretionary contribution amount | 100,000
Scottdale Defined Benefit Pension Plan [Member] |
Defined Benefit Plan Disclosure [Line Items] |
1/1/2021 to 12/31/2021 | 85,000
1/1/2022 to 12/31/2022 | 102,000
1/1/2023 to 12/31/2023 | 104,000
1/1/2024 to 12/31/2024 | 226,000
1/1/2025 to 12/31/2025 | 282,000
1/1/2026 to 12/31/2030 | 1,595,000
Defined contribution plan, employer discretionary contribution amount | $ 300,000

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- Definition Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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