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The following table summarizes additional stock option information as of December 31, 2022: (Details) | 12 Months Ended
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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

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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 -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 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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