| Equity Method Investments [Table Text Block] |
| | | As of June 30, 2026 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Current assets | | $ | 5,882,671 | | | $ | 4,094,603 | | | $ | 1,652,080 | | | $ | 135,988 | |
| Noncurrent assets | | | 136,066,187 | | | | 51,671,079 | | | | 71,260,912 | | | | 13,134,196 | |
| Current liabilities | | | 76,283,096 | | | | 71,586,314 | | | | 4,632,784 | | | | 63,998 | |
| Noncurrent liabilities | | | 87,122,632 | | | | 15,505,104 | | | | 66,442,528 | | | | 5,175,000 | |
| Joint ventures' equity | | | (21,456,870 | ) | | | (31,325,736 | ) | | | 1,837,680 | | | | 8,031,186 | |
| CPHC share of joint ventures' equity | | | (4,236,089 | ) | | | (8,801,999 | ) | | | (343,522 | ) | | | 4,909,432 | |
| | | Three Months Ended June 30, 2026 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Net sales | | $ | 2,906,702 | | | $ | 1,174,707 | | | $ | 1,599,730 | | | $ | 132,265 | |
| Gross profit | | | 1,398,868 | | | | 432,888 | | | | 862,321 | | | | 103,659 | |
| Net loss | | | (3,596,875 | ) | | | (1,624,379 | ) | | | (1,771,015 | ) | | | (201,481 | ) |
| CPHC share of equity in losses of joint ventures | | | (1,048,807 | ) | | | (445,080 | ) | | | (485,258 | ) | | | (118,469 | ) |
| CPHC's dividends received from joint ventures | | | (37,732 | ) | | | — | | | | — | | | | (37,732 | ) |
| | | Six Months Ended June 30, 2026 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Net sales | | $ | 5,595,300 | | | $ | 2,113,938 | | | $ | 3,216,832 | | | $ | 264,530 | |
| Gross profit | | | 2,576,762 | | | | 629,461 | | | | 1,727,092 | | | | 220,209 | |
| Net loss | | | (7,930,919 | ) | | | (3,820,242 | ) | | | (3,809,181 | ) | | | (301,496 | ) |
| CPHC share of equity in losses of joint ventures | | | (2,265,601 | ) | | | (1,046,746 | ) | | | (1,043,716 | ) | | | (175,139 | ) |
| CPHC's dividends received from joint ventures | | | (75,473 | ) | | | — | | | | — | | | | (75,473 | ) |
| | | 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 June 30, 2025 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Net sales | | $ | 1,794,289 | | | $ | 315,959 | | | $ | 1,458,398 | | | $ | 19,932 | |
| Gross profit (loss) | | | 518,483 | | | | (386,774 | ) | | | 904,168 | | | | 1,089 | |
| Net loss | | | (4,901,805 | ) | | | (3,064,630 | ) | | | (1,689,910 | ) | | | (147,265 | ) |
| CPHC share of equity in losses of joint ventures | | | (1,389,604 | ) | | | (839,709 | ) | | | (463,035 | ) | | | (86,860 | ) |
| CPHC's dividends received from joint ventures | | | (18,648 | ) | | | — | | | | — | | | | (18,648 | ) |
| | | Six Months Ended June 30, 2025 | |
| | | Total | | | Doran I | | | Doran II | | | Other | |
| Net sales | | $ | 3,257,885 | | | $ | 444,086 | | | $ | 2,786,227 | | | $ | 27,572 | |
| Gross profit (loss) | | | 690,220 | | | | (1,030,678 | ) | | | 1,733,557 | | | | (12,659 | ) |
| Net loss | | | (10,511,900 | ) | | | (6,702,075 | ) | | | (3,558,133 | ) | | | (251,692 | ) |
| CPHC share of equity in losses of joint ventures | | | (2,962,766 | ) | | | (1,836,369 | ) | | | (974,928 | ) | | | (151,469 | ) |
| CPHC's dividends received from joint ventures | | | (37,295 | ) | | | — | | | | — | | | | (37,295 | ) |
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