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Shareholders' Equity (Changes in Shares of Common Stock) (Details) - shares | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Shareholders Equity [Line Items] |  |  |
Treasury stock, beginning balance | 759,555 |  |
Shares issued, beginning balance | 16,099,556 | 16,099,556 | 16,099,556
Treasury stock purchases | 0 |  |
Treasury stock, ending balance | 692,150 | 759,555 |
Shares issued, ending balance | 16,099,556 | 16,099,556 | 16,099,556
Common Stock [Member] |  |  |
Shareholders Equity [Line Items] |  |  |
Shares outstanding, beginning balance | 15,340,001 | 15,745,453 | 16,041,926
Shares issued for Landmark Group acquisition |  |  | 12,831
Restricted stock awards issued | 20,185 | 12,242 | 9,350
Restricted stock units released | 59,984 | 55,912 | 24,069
Stock awards | 10,591 | 7,856 | 5,972
Treasury stock purchases | (23,355) | (481,462) | (348,695)
Shares outstanding, ending balance | 15,407,406 | 15,340,001 | 15,745,453
Treasury Stock [Member] |  |  |
Shareholders Equity [Line Items] |  |  |
Treasury stock, beginning balance | 759,555 | 354,103 | 57,630
Shares issued for Landmark Group acquisition |  |  | (12,831)
Restricted stock awards issued | (20,185) | (12,242) | (9,350)
Restricted stock units released | (59,984) | (55,912) | (24,069)
Stock awards | (10,591) | (7,856) | (5,972)
Treasury stock purchases | 23,355 | 481,462 | 348,695
Treasury stock, ending balance | 692,150 | 759,555 | 354,103

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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 -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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