Stock Options - SARs (Details) - USD ($)		3 Months Ended		9 Months Ended
	Apr. 18, 2022	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 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
Exercised				(2,111)
Forfeited				(11,500)
Outstanding ending balance		459,639		459,639
SARs fully vested and exercisable		22,482		22,482
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, exercised (per share)				39.33
Weighted average exercise price, forfeited (per share)				39.33
Weighted average exercise price, ending balance (per share)		$ 39.60		39.60
SARs Weighted average exercise price				$ 39.33
Aggregate intrinsic value
Aggregate intrinsic value		$ 9,278,000		$ 9,278,000
SAR Aggregate intrinsic value		460,000		$ 460,000
Weighted average remaining contractual term (years)				7 years 9 months 14 days
SAR Weighted average remaining contractual term (years)				7 years 9 months
Stock Appreciation Rights (SARs)
Aggregate intrinsic value
Fair Value of Liability		3,680,000		$ 3,680,000		$ 1,464,000
Stock-based compensation expense		847,000	$ 219,000	2,271,000	$ 649,000
Stock-based compensation cost, unrecognized		$ 8,813,000		$ 8,813,000
Stock-based compensation cost, unrecognized, weighted-average period of recognition				7 years 9 months 18 days
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				459,639
Vesting period	8 years
SARs
Granted				459,639