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Note 13 - Share-based Compensation - Stock-settled Stock Appreciation Rights Transactions (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Lapsed or cancelled (in shares) | (180,962) |
Lapsed or cancelled, weighted average exercise price (in dollars per share) | $ 17.99 |
Stock Appreciation Rights (SARs) [Member] |  |
Outstanding SARS (in shares) | 320,385 |
Outstanding (in dollars per share) | $ 15.23 |
Outstanding SARS, weighted average remaining life (Year) | 2 years 25 days | 2 years 2 months 23 days
Outstanding SARS, aggregate intrinsic value | $ 506 | $ 69
Granted SARs (in shares) | 51,209 |
Granted SARS, weighted average exercise price (in dollars per share) | $ 12.04 |
Exercised SARs (in shares) | (41,226) |
Exercised SARS, weighted average exercise price (in dollars per share) | $ 9.83 |
Lapsed or cancelled (in shares) | (37,860) |
Lapsed or cancelled, weighted average exercise price (in dollars per share) | $ 23.62 |
Outstanding SARS (in shares) | 292,508 | 320,385
Outstanding SARS, weighted average exercise price (in dollars per share) | $ 14.35 | $ 15.23
Exercisable (in shares) | 184,245 |
Exercisable, weighted average exercise price (in dollars per share) | $ 14.29 |
Exercisable SARS, weighted average remaining life (Year) | 1 year 1 month 6 days |
Exercisable, aggregate intrinsic value | $ 361 |

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- Definition The weighted average exercise price for non-option equity instruments. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of SARS exercised during the reporting period as calculated by applying the disclosed option pricing methodology. + References No definition available. + Details
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- Definition The weighted average exercise price of non-option equity instruments granted during the period. + References No definition available. + Details
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- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of non-option equity awards outstanding and currently exercisable. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for vested portions of non-options equity instruments outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of non-option equity awards outstanding. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for non-option equity awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Number of non-option equity instruments exercised by participants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(2) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Net number of non-option equity instruments granted to participants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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