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The following table summarizes additional stock option information as of December 31, 2023: (Details) | 12 Months Ended
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Dec. 31, 2023 $ / shares shares
Options outstanding | 308,970
Options outstanding weighted average remaining contractual life | 2 years 10 months 6 days
Options exercisable | 186,870
Exercise Price Range One [Member] |
Options outstanding | 100,680
Options outstanding weighted average remaining contractual life | 1 year 18 days
Options exercisable | 96,180
Exercise Price Range Two [Member] |
Exercise price range (in dollars per share) | $ / shares | $ 73.09
Options outstanding | 104,790
Options outstanding weighted average remaining contractual life | 2 years
Options exercisable | 79,490
Exercise Price Range Three [Member] |
Exercise price range (in dollars per share) | $ / shares | $ 97.84
Options outstanding | 56,000
Options outstanding weighted average remaining contractual life | 5 years
Options exercisable | 11,200
Exercise Price Range Four [Member] |
Exercise price range (in dollars per share) | $ / shares | $ 147.71
Options outstanding | 47,500
Options outstanding weighted average remaining contractual life | 6 years
Options exercisable |
Minimum [Member] | Exercise Price Range One [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 | $ 69.11

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- 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 -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 + Details
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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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (e)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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