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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
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