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Note 5 - Stock-Based Compensation - Weighted Average Period for Recognition of Unrecognized Compensation Cost for Stock Options and Restricted Stock (Details) | 9 Months Ended
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Sep. 30, 2024
Restricted Stock [Member] |
Weighted average period (in years) (Year) | 10 months 2 days
Restricted Stock Units (RSUs) [Member] |
Weighted average period (in years) (Year) | 1 year 4 months 20 days
Performance Shares [Member] |
Weighted average period (in years) (Year) | 1 year 6 months 25 days

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
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Data Type: | na
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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Period Type: |