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of Common Stock Reserved for Future Issuances Schedule of Stock by Class [Table Text Block] Fair Value as of Grant Date Award Grant Date Fair Value Accelerated stock-based compensation expense Share-Based Payment Arrangement, Accelerated Expense Share-Based Payment Arrangement, Accelerated Expense Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Purchases of investments (including $(30,000) and $(15,000) from a related party for the nine months ended September 30, 2025 and 2024, respectively) Purchases of investments Payments to Acquire Investments Title of Individual [Domain] Title and Position [Domain] Total cost and expenses Costs and Expenses Cancelled/forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Unamortized share-based compensation expense Share-Based Payment Arrangement, Nonvested 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