| Equity Method Investments [Table Text Block] |
| | | As of September 30, 2026 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Current assets | | $ | 5,958,680 | | | $ | 4,096,237 | | | $ | 1,737,728 | | | $ | 124,715 | |
| Noncurrent assets | | | 133,873,298 | | | | 51,109,961 | | | | 69,780,166 | | | | 12,983,171 | |
| Current liabilities | | | 75,867,040 | | | | 71,502,530 | | | | 4,327,346 | | | | 37,164 | |
| Noncurrent liabilities | | | 87,979,946 | | | | 16,249,461 | | | | 66,560,935 | | | | 5,169,550 | |
| Joint ventures' equity | | | (24,015,008 | ) | | | (32,545,793 | ) | | | 629,613 | | | | 7,901,172 | |
| CPHC share of joint ventures' equity | | | (5,141,012 | ) | | | (9,159,909 | ) | | | (766,814 | ) | | | 4,785,711 | |
| | | Three Months Ended September 30, 2026 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Net sales | | $ | 3,225,038 | | | $ | 1,461,928 | | | $ | 1,623,845 | | | $ | 139,265 | |
| Gross profit | | | 1,835,095 | | | | 753,007 | | | | 1,022,794 | | | | 59,294 | |
| Net loss | | | (2,974,849 | ) | | | (1,306,239 | ) | | | (1,544,862 | ) | | | (123,748 | ) |
| CPHC share of equity in losses of joint ventures | | | (852,426 | ) | | | (357,909 | ) | | | (423,292 | ) | | | (71,225 | ) |
| CPHC's dividends received from joint ventures | | | (52,496 | ) | | | — | | | | — | | | | (52,496 | ) |
| | | Nine Months Ended September 30, 2026 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Net sales | | $ | 8,834,255 | | | $ | 3,575,866 | | | $ | 4,840,677 | | | $ | 417,712 | |
| Gross profit | | | 4,295,081 | | | | 1,382,468 | | | | 2,749,886 | | | | 162,727 | |
| Net loss | | | (10,905,768 | ) | | | (5,126,481 | ) | | | (5,354,043 | ) | | | (425,244 | ) |
| CPHC share of equity in losses of joint ventures | | | (3,118,027 | ) | | | (1,404,656 | ) | | | (1,467,008 | ) | | | (246,363 | ) |
| CPHC's dividends received from joint ventures | | | (127,972 | ) | | | — | | | | — | | | | (127,972 | ) |
| | | As of December 31, 2025 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Current assets | | $ | 6,306,889 | | | $ | 5,779,528 | | | $ | 456,519 | | | $ | 70,842 | |
| Noncurrent assets | | | 139,607,148 | | | | 53,053,492 | | | | 72,925,034 | | | | 13,628,622 | |
| Current liabilities | | | 77,028,627 | | | | 72,325,450 | | | | 4,693,064 | | | | 10,113 | |
| Noncurrent liabilities | | | 89,001,340 | | | | 14,567,290 | | | | 69,259,050 | | | | 5,175,000 | |
| Joint ventures' equity | | | (20,115,930 | ) | | | (28,059,720 | ) | | | (570,561 | ) | | | 8,514,351 | |
| CPHC share of joint ventures' equity | | | (3,365,820 | ) | | | (7,755,253 | ) | | | (766,211 | ) | | | 5,155,644 | |
| | | Three Months Ended September 30, 2025 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Net sales | | $ | 2,586,763 | | | $ | 838,253 | | | $ | 1,617,245 | | | $ | 131,265 | |
| Gross profit (loss) | | | 1,306,952 | | | | 203,260 | | | | 1,051,087 | | | | 52,605 | |
| Net loss | | | (3,305,528 | ) | | | (1,804,710 | ) | | | (1,412,818 | ) | | | (88,000 | ) |
| CPHC share of equity in losses of joint ventures | | | (936,264 | ) | | | (494,491 | ) | | | (387,111 | ) | | | (54,662 | ) |
| CPHC's dividends received from joint ventures | | | (18,648 | ) | | | — | | | | — | | | | (18,648 | ) |
| | | Nine Months Ended September 30, 2025 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Net sales | | $ | 5,844,648 | | | $ | 1,282,339 | | | $ | 4,403,472 | | | $ | 158,837 | |
| Gross profit (loss) | | | 1,997,172 | | | | (827,418 | ) | | | 2,784,644 | | | | 39,946 | |
| Net loss | | | (13,817,426 | ) | | | (8,506,785 | ) | | | (4,970,951 | ) | | | (339,690 | ) |
| CPHC share of equity in losses of joint ventures | | | (3,899,029 | ) | | | (2,330,859 | ) | | | (1,362,040 | ) | | | (206,130 | ) |
| CPHC's dividends received from joint ventures | | | (55,943 | ) | | | — | | | | — | | | | (55,943 | ) |
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