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Benefit Plan Schedule of allocation of plan assets (Details) - shares | Dec. 31, 2022 | Dec. 31, 2021
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Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage | 100.00% | 100.00%
Fair value, pension plan common shares held, shares | 115,800 | 115,800
Equity securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage | 84.00% | 82.00%
Fixed Income Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage | 16.00% | 18.00%

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- Definition Common shares held under pension plan, shares. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Details
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- Details
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