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Note 3 - Balance Sheet Components - Schedule of Accrued Expenses (Details) - USD ($)
Jun. 30, 2026
Dec. 31, 2025
Payroll-related liabilities $ 237,835 $ 181,584
Accrued clinical trial costs 393,835 587,303
Other accrued expenses 93,000 113,929
Total accrued expenses $ 724,670 $ 882,816