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The following table summarizes additional stock option information as of December 31, 2022: (Details)	12 Months Ended
	Dec. 31, 2022 $ / shares shares
Options outstanding	441,580
Options outstanding weighted average remaining contractual life	2 years 7 months 13 days
Options exercisable	272,850
Exercise Price Range One [Member]
Options outstanding	103,460
Options exercisable	101,860
Exercise Price Range Two [Member]
Options outstanding	139,900
Options exercisable	97,210
Exercise Price Range Three [Member]
Exercise price range (in dollars per share) | $ / shares	$ 73.09
Options outstanding	136,220
Options outstanding weighted average remaining contractual life	3 years
Options exercisable	73,780
Exercise Price Range Four [Member]
Exercise price range (in dollars per share) | $ / shares	$ 97.84
Options outstanding	62,000
Options outstanding weighted average remaining contractual life	5 years 10 months 6 days
Options exercisable
Minimum [Member] | Exercise Price Range One [Member]
Exercise price range (in dollars per share) | $ / shares	$ 40.15
Minimum [Member] | Exercise Price Range Two [Member]
Exercise price range (in dollars per share) | $ / shares	62.18
Maximum [Member] | Exercise Price Range One [Member]
Exercise price range (in dollars per share) | $ / shares	$ 46.90
Options outstanding weighted average remaining contractual life	11 months 15 days
Maximum [Member] | Exercise Price Range Two [Member]
Exercise price range (in dollars per share) | $ / shares	$ 69.11
Options outstanding weighted average remaining contractual life	2 years 15 days

X

- Definition

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(iii)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

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.

+ References

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-Topic 718
-SubTopic 10
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-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Paragraph 2
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- Definition

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.

+ References

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