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Share-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions |  |  | 6 Months Ended |
--- | --- | --- | --- | ---
Jul. 20, 2021 | Jun. 15, 2018 | Jun. 30, 2022 | Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Weighted-average grant date fair value per share |  |  | $ 26.31 |
Shares granted under Stock incentive plan |  |  | 7,000 |
Maximum shares to be earned |  |  | 113,636 |
Share based compensation average annual total stock holders return, description |  |  | The percentage of the market performance-based equity award to be earned will be determined based on the Company’s annual return on an investment in the Company’s common stock (“TSR”) over the Interim Performance Period and/or over the Full Performance Period as follows: if average annual TSR (1) is below 4%, the percentage of grant earned would be 0%, (2) equals 4%, the percentage of grant earned would be 33.3%, (3) equals 6.5%, the percentage of grant earned would be 66.7%, and (4) equals 10% or above, the percentage of grant earned would be 100%. |
Common stock, shares issued |  |  | 13,558,000 | 13,658,000
Chief Executive Officer [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares granted to Company's President |  | 113,636 |  |
Common stock, shares issued | 113,636 |  |  |
Dividend equivalent rights paid | $ 0.3 |  |  |
Market Performance-Based Equity Award [Member] | Chief Executive Officer [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares granted under Stock incentive plan |  | 227,272 |  |
Dividend equivalent rights |  | 227,272 |  |
2017 Plan [Member] | Restricted Stock Awards [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Shares issued |  |  | 7,000 |
Weighted-average grant date fair value per share |  |  | $ 26.31 |

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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