Taxes - Significant components of deferred tax assets (Details) - USD ($) |
Dec. 31, 2025 |
Jun. 30, 2025 |
|---|---|---|
| Operating Loss Carryforwards [Line Items] | ||
| Valuation allowance | $ (6,526,489) | $ (6,534,073) |
| United States | ||
| Operating Loss Carryforwards [Line Items] | ||
| Deferred tax assets | 6,473,128 | 6,480,712 |
| Canada | ||
| Operating Loss Carryforwards [Line Items] | ||
| Deferred tax assets | $ 53,361 | $ 53,361 |