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Employee Benefit Plans (Actual Plan Asset Allocations) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 59,696 | $ 55,971
Defined Benefit Plan, Actual Plan Asset Allocations | 100.00% | 100.00%
Common stock shares included in large cap equities | 194,124 |
Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 44,870 | $ 39,804
Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | 14,826 | 16,167
Cash and Cash Equivalents [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 763 | $ 2,312
Defined Benefit Plan, Actual Plan Asset Allocations | 1.30% | 4.10%
Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 763 | $ 2,312
Fixed Income Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 24,086 | $ 22,423
Defined Benefit Plan, Actual Plan Asset Allocations | 40.30% | 40.10%
Fixed Income Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 9,260 | $ 6,256
Fixed Income Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | 14,826 | 16,167
U.S. Government and Agencies [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 125 | $ 298
Defined Benefit Plan, Actual Plan Asset Allocations | 0.20% | 0.60%
U.S. Government and Agencies [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 125 | $ 298
Taxable Municipal Bonds and Notes [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 5,290 | $ 4,215
Defined Benefit Plan, Actual Plan Asset Allocations | 8.90% | 7.50%
Taxable Municipal Bonds and Notes [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 5,290 | $ 4,215
Corporate Bonds and Notes [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 8,451 | $ 10,681
Defined Benefit Plan, Actual Plan Asset Allocations | 14.20% | 19.10%
Corporate Bonds and Notes [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 8,451 | $ 10,681
Preferred Stock [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 960 | $ 973
Defined Benefit Plan, Actual Plan Asset Allocations | 1.60% | 1.70%
Preferred Stock [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 960 | $ 973
Fixed Income Mutual Funds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 9,260 | $ 6,256
Defined Benefit Plan, Actual Plan Asset Allocations | 15.50% | 11.20%
Fixed Income Mutual Funds [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 9,260 | $ 6,256
Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 34,847 | $ 31,236
Defined Benefit Plan, Actual Plan Asset Allocations | 58.40% | 55.80%
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 34,847 | $ 31,236
Large Cap [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 27,575 | $ 24,886
Defined Benefit Plan, Actual Plan Asset Allocations | 46.20% | 44.50%
Large Cap [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 27,575 | $ 24,886
Mid Cap [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 2,052 | $ 1,511
Defined Benefit Plan, Actual Plan Asset Allocations | 3.40% | 2.70%
Mid Cap [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 2,052 | $ 1,511
Small Cap [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 39 | $ 477
Defined Benefit Plan, Actual Plan Asset Allocations | 0.10% | 0.80%
Small Cap [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 39 | $ 477
International [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 5,181 | $ 4,362
Defined Benefit Plan, Actual Plan Asset Allocations | 8.70% | 7.80%
International [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Fair Value of Plan Assets | $ 5,181 | $ 4,362

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