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Note 20 - Subsequent Events (Details Textual) - Research Collaboration and License Agreement with Eli Lilly [Member] - SEED Therapeutics Inc. [Member] - USD ($) $ in Millions |  | 12 Months Ended
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Mar. 22, 2024 | Dec. 31, 2023
Revenue from Collaborative Arrangement, Excluding Revenue from Contract with Customer |  | $ 2
Subsequent Event [Member] |  |
Revenue from Collaborative Arrangement, Excluding Revenue from Contract with Customer | $ 1 |

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- Definition Amount of revenue from collaborative arrangement. Excludes revenue from contract with customer under Topic 606. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 808 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479402/808-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 45 -Paragraph 3 -SubTopic 10 -Topic 808 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479428/808-10-45-3 + Details
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