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Stock Options and Stock Appreciation Rights - SARs (Details) - Stock Appreciation Rights - USD ($) |  | 12 Months Ended
--- | --- | ---
Apr. 18, 2022 | Dec. 31, 2022
Stock option details |  |
Shares available for future grants | 750,000 |
Maximum exercisable period for granted share-based compensation | 10 years |
Number of rights issued |  | 502,250
Base value of units issued (per unit) |  | $ 39.95
Vesting period | 8 years |
SARs |  |
Granted |  | 502,250
Foreited |  | 13,000
Outstanding ending balance |  | 489,250
Weighted average exercise price |  |
Weighted average exercise price, granted (per share) |  | $ 39.95
Weighted average exercise price, forfeited (per share) |  | 39.33
Weighted average exercise price, ending balance (per share) |  | $ 39.35
Aggregate intrinsic value |  |
Aggregate intrinsic value |  | $ 3,136,000
Weighted average remaining contractual term (years) |  | 9 years 6 months
Fair Value of Liability |  | $ 546,000
Stock-based compensation expense |  | $ 546,000

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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(03) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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