Note 6 - Commitments and Contingencies 2 (Details Textual) - USD ($) |
3 Months Ended | 9 Months Ended | |
|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Impairment to Other Long-term Receivables | $ 419,493 | $ 419,493 | $ 0 |
| Location, Statement of Income, Balance [Axis]: cphc:PurseExpense | |||
| Impairment to Other Long-term Receivables | $ 419,493 | $ 419,493 | |