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Note 8 - Share-based Compensation (Details Textual) - shares | 3 Months Ended |
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Mar. 31, 2025 | Mar. 09, 2017
The 2017 Omnibus Incentive Plan [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) |  | 5,277,197
SEED 2022 Share Incentive Plan [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross | 4,500 |
SEED 2022 Share Incentive Plan [Member] | Minimum [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period | 4 years |
SEED 2022 Share Incentive Plan [Member] | Maximum [Member] |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period | 5 years |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Gross number of share options (or share units) granted during the period. + 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)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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