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The following table summarizes additional stock option information as of December 31, 2024: (Details)	12 Months Ended
	Dec. 31, 2024 $ / shares shares
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding	246,430
Options outstanding weighted average remaining contractual life	3 years 4 months 6 days
Options exercisable	127,780
Exercise Price Range One [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options outstanding	10,500
Options outstanding weighted average remaining contractual life	7 months 28 days
Options exercisable	9,000
Exercise Price Range Two [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price range (in dollars per share) | $ / shares	$ 73.09
Options outstanding	88,580
Options outstanding weighted average remaining contractual life	1 year
Options exercisable	88,580
Exercise Price Range Three [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price range (in dollars per share) | $ / shares	$ 97.84
Options outstanding	53,600
Options outstanding weighted average remaining contractual life	4 years
Options exercisable	20,900
Exercise Price Range Four [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price range (in dollars per share) | $ / shares	$ 147.71
Options outstanding	46,500
Options outstanding weighted average remaining contractual life	4 years 11 months 26 days
Options exercisable	9,300
Exercise Price Range Five [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price range (in dollars per share) | $ / shares	$ 130.6
Options outstanding	47,250
Options outstanding weighted average remaining contractual life	6 years
Options exercisable	0
Minimum [Member] | Exercise Price Range One [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price range (in dollars per share) | $ / shares	$ 62.18
Maximum [Member] | Exercise Price Range One [Member]
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Exercise price range (in dollars per share) | $ / shares	$ 69.11

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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

+ References

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-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(iii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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