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Note 7 - Revenue From Government Contract (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Revenue from Contract with Customer, Including Assessed Tax $ 1,636,863 $ 0
Grant [Member] | BARDA Contract [Member]    
Revenue from Contract with Customer, Including Assessed Tax $ 1,636,863