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Note 19 - Share-based Compensation - Number of Shares to Be Issued Upon Exercise of Outstanding Stock-based Awards (Details) | Dec. 31, 2023 shares
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Expected shares to be awarded (in shares) | 151,000 |
Number of shares to be issued upon exercise (in shares) | 106,000 |
Stock Appreciation Rights (SARs) [Member] |  |
Expected shares to be awarded (in shares) | 151,000 | [1]
Restricted Stock [Member] |  |
Number of shares to be issued upon exercise (in shares) | 98,000 |
Restricted Stock Units (RSUs) [Member] |  |
Number of shares to be issued upon exercise (in shares) | 8,000 |
[1] | Under the 2015 Omnibus Equity Compensation Plan, shares of stock are authorized for issuance as incentive and non-qualified stock options, SARs, RSAs, and RSUs.

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- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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