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Note 11 - Income Taxes - Deferred Income Tax Assets (Liabilities) (Details) - USD ($)
Sep. 30, 2025
Sep. 30, 2024
Net loss carryforwards $ 30,067,876 $ 31,667,146
Accruals and reserves 164,070 134,414
Severance indemnity reserve 0 114,837
Contributions 4,036 3,911
Depreciation and amortization (710,425) (494,657)
Stock-based compensation 0 0
Interest Expense Carryforward 924,102 708,230
Valuation allowance (30,449,659) (31,925,292)
Total $ 0 $ 208,589