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Note 11 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Net operating loss | $ 21,388,936 | $ 10,417,666
Research and development credits | 2,367,496 | 1,228,255
Capitalized research expenditures | 3,289,629 | 6,392,545
Stock-based compensation | 977,321 | 698,886
Charitable contributions | 2,130 | 1,321
Intangibles | 182,441 | 193,106
Gross deferred tax assets | 28,207,953 | 18,931,779
Less valuation allowance | (27,687,487) | (18,557,844)
Total deferred tax assets | 520,466 | 373,935
Prepaids | (520,466) | (373,935)
Gross deferred tax liabilities | (520,466) | (373,935)
Deferred tax assets, net | $ 0 | $ 0

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