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Note 3 - Balance Sheet Components - Schedule of Accrued Expenses - 10Q (Details) - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Dec. 31, 2023
Payroll-related liabilities $ 212,483 $ 986,691 $ 114,337
Other accrued expenses 486,293 270,881 602,594
Total accrued expenses $ 699,076 $ 1,257,572 $ 716,931