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v3.20.4

Stock-Based Compensation Plans (Summary of Nonvested Stock Options) (Details) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2018
Awards |  |
Nonvested, beginning | 1,850 |
Granted | 0 |
Vested | (950) |
Forfeited | 0 |
Nonvested, ending | 900 |
Weighted- Average Grant Date Fair Value |  |
Nonvested, beginning | $ 6.48 |
Granted | 0 | $ 7.78
Vested | 6.08 |
Forfeited | 0 |
Nonvested, ending | $ 6.89 |

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- Definition Non Union Employees [Member] + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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