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Stock Options - SARs (Details) - USD ($)		3 Months Ended		6 Months Ended
	Apr. 18, 2022	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Stock option details
Number of rights issued				8,000
Base value of units issued (per unit)				$ 53.91
SARs
Outstanding beginning balance				465,250
Granted				8,000
Forfeited				(11,500)
Outstanding ending balance		461,750		461,750
Weighted average exercise price
Weighted average exercise price, beginning balance (per share)				$ 39.35
Weighted average exercise price, granted (per share)				53.91
Weighted average exercise price, forfeited (per share)				39.33
Weighted average exercise price, ending balance (per share)		$ 39.60		$ 39.60
Aggregate intrinsic value
Aggregate intrinsic value		$ 8,130,000		$ 8,130,000
Weighted average remaining contractual term (years)				8 years 14 days
Stock Appreciation Rights (SARs)
Aggregate intrinsic value
Fair Value of Liability		2,888,000		$ 2,888,000		$ 1,464,000
Stock-based compensation expense		344,000	$ 264,000	1,424,000	$ 430,000
Stock-based compensation cost, unrecognized		$ 7,311,000		$ 7,311,000
Stock-based compensation cost, unrecognized, weighted-average period of recognition				8 years
Stock Appreciation Rights (SARs) | SAR Plan
Stock option details
Shares available for future grants	750,000
Maximum exercisable period for granted share-based compensation	10 years
Number of rights issued				461,750
Vesting period	8 years
SARs
Granted				461,750

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