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Earnings Per Common Share And Share Awards (Tables) | 3 Months Ended
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Mar. 31, 2023
Earnings Per Share [Abstract] |
Computation Of Basic And Diluted Earnings Per Share | The following table sets forth the computation of basic and diluted earnings per share for the three-month periods ended March 31:
|  | Three Months Ended March 31,
(in thousands, except per share amounts) |  | 2023 |  | 2022
Net income |  | $ | 1,181 |  |  | $ | 6,185 |
Weighted average common shares outstanding – Basic |  | 1,897 |  |  | 1,896 |
Incremental shares outstanding assuming the exercise of dilutive SARs (share-settled) |  | — |  |  | 7 |
Weighted average common shares outstanding – Diluted |  | 1,897 |  |  | 1,903 |
Basic earnings per common share |  | $ | 0.62 |  |  | $ | 3.26 |
Diluted earnings per common share |  | $ | 0.62 |  |  | $ | 3.25 |
Summary Of Share-Based Award Transactions | A summary of share-based award transactions for all share-based award plans follows:
(in thousands, except weighted average exercise price and average remaining contractual term) | Number Of Shares |  | Weighted Average Exercise Price |  | Average Remaining Contractual Term (Years) |  | Aggregate Intrinsic Value
Outstanding as of January 1, 2022 | 35 |  |  | $ | 150.36 |  |  | 3.96 |  | $ | 1,643 |
SARs granted | 10 |  |  | 155.16 |  |  |  |  |
SARs exercised | (6) |  |  | 94.44 |  |  |  |  |
Outstanding as of December 31, 2022 | 39 |  |  | $ | 159.39 |  |  | 4.10 |  | $ | 243 |
SARs granted | 1 |  |  | 159.58 |  |  |  |  |
SARs exercised | (2) |  |  | 93.87 |  |  |  |  |
Outstanding as of March 31, 2023 | 38 |  |  | $ | 163.31 |  |  | 4.12 |  | $ | 171 |
Exercisable as of March 31, 2023 | 29 |  |  | $ | 169.40 |  |  | 3.69 |  | $ | 104 |
Unvested as of March 31, 2023 | 9 |  |  | $ | 143.36 |  |  | 5.51 |  | $ | 67 |
Share-Based Valuation Assumptions | The weighted average fair value for the SARs issued during 2023 was $61.56, estimated using the weighted average assumptions shown in the table below:
|  |  | 2023
Expected Life in Years |  |  | 6.2
Volatility |  |  | 36.8%
Interest Rate |  |  | 4.2%
Yield Rate |  |  | 1.2%

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- Definition Tabular disclosure of activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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