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Stock Option Plan - Schedule of stock-based compensation expense for stock options (Details) - Selling, general and administrative - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation | $ 245,624 | $ 601,075 | $ 814,305 | $ 1,991,884
Options |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation | 8,124 | 598,588 | 576,805 | 1,638,820
Restricted stock |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation | 237,500 | 2,487 | 237,500 | 290,443
Stock options - modified options |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation | 0 | 0 | 0 | 169
Profit interest units |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock-based compensation | $ 0 | $ 0 | $ 0 | $ 62,452

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