Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-24-005944-index-headers.html | 2024-02-21 16:55:39 | |
| 0001628280-24-005944-index.html | 2024-02-21 16:55:39 | |
| 0001628280-24-005944.txt | 2024-02-21 16:55:39 | |
 0001628280-24-005944-xbrl.zip | 713904 | 2024-02-21 16:55:39 |
| cpk-20231231.htm | 3688188 | 2024-02-21 16:55:39 |
| cpk-20231231.xsd | 169008 | 2024-02-21 16:55:39 |
| cpk-20231231_cal.xml | 109624 | 2024-02-21 16:55:39 |
| cpk-20231231_def.xml | 943825 | 2024-02-21 16:55:39 |
 cpk-20231231_g1.jpg | 105549 | 2024-02-21 16:55:39 |
| cpk-20231231_htm.xml | 3128973 | 2024-02-21 16:55:39 |
| cpk-20231231_lab.xml | 1618581 | 2024-02-21 16:55:39 |
| cpk-20231231_pre.xml | 1280784 | 2024-02-21 16:55:39 |
| cpk12312023ex-1033.htm | 9041 | 2024-02-21 16:55:39 |
| cpk12312023ex-1034.htm | 10822 | 2024-02-21 16:55:39 |
| cpk12312023ex-21.htm | 19430 | 2024-02-21 16:55:39 |
| cpk12312023ex-231.htm | 5146 | 2024-02-21 16:55:39 |
| cpk12312023ex-311.htm | 10406 | 2024-02-21 16:55:39 |
| cpk12312023ex-312.htm | 10525 | 2024-02-21 16:55:39 |
| cpk12312023ex-321.htm | 4831 | 2024-02-21 16:55:39 |
| cpk12312023ex-322.htm | 5114 | 2024-02-21 16:55:39 |
| cpk12312023ex-97.htm | 17002 | 2024-02-21 16:55:39 |
| FilingSummary.xml | 71638 | 2024-02-21 16:55:39 |
| Financial_Report.xlsx | 232232 | 2024-02-21 16:55:39 |
| MetaLinks.json | 1522811 | 2024-02-21 16:55:39 |
| R1.htm | 64705 | 2024-02-21 16:55:39 |
| R10.htm | 12712 | 2024-02-21 16:55:39 |
| R100.htm | 17672 | 2024-02-21 16:55:39 |
| R101.htm | 46645 | 2024-02-21 16:55:39 |
| R102.htm | 53956 | 2024-02-21 16:55:39 |
| R103.htm | 53630 | 2024-02-21 16:55:39 |
| R104.htm | 31126 | 2024-02-21 16:55:39 |
| R105.htm | 35346 | 2024-02-21 16:55:39 |
| R106.htm | 25758 | 2024-02-21 16:55:39 |
| R107.htm | 13094 | 2024-02-21 16:55:39 |
| R108.htm | 34154 | 2024-02-21 16:55:39 |
| R109.htm | 6629 | 2024-02-21 16:55:39 |
| R11.htm | 90974 | 2024-02-21 16:55:39 |
| R110.htm | 86966 | 2024-02-21 16:55:39 |
| R111.htm | 60298 | 2024-02-21 16:55:39 |
| R112.htm | 18780 | 2024-02-21 16:55:39 |
| R113.htm | 44462 | 2024-02-21 16:55:39 |
| R114.htm | 45283 | 2024-02-21 16:55:39 |
| R115.htm | 12024 | 2024-02-21 16:55:39 |
| R116.htm | 11239 | 2024-02-21 16:55:39 |
| R12.htm | 27572 | 2024-02-21 16:55:39 |
| R13.htm | 42350 | 2024-02-21 16:55:39 |
| R14.htm | 216813 | 2024-02-21 16:55:39 |
| R15.htm | 75645 | 2024-02-21 16:55:39 |
| R16.htm | 23109 | 2024-02-21 16:55:39 |
| R17.htm | 64701 | 2024-02-21 16:55:39 |
| R18.htm | 64167 | 2024-02-21 16:55:39 |
| R19.htm | 33785 | 2024-02-21 16:55:39 |
| R2.htm | 7807 | 2024-02-21 16:55:39 |
| R20.htm | 81447 | 2024-02-21 16:55:39 |
| R21.htm | 64723 | 2024-02-21 16:55:39 |
| R22.htm | 11967 | 2024-02-21 16:55:39 |
| R23.htm | 48252 | 2024-02-21 16:55:39 |
| R24.htm | 34249 | 2024-02-21 16:55:39 |
| R25.htm | 191228 | 2024-02-21 16:55:39 |
| R26.htm | 44799 | 2024-02-21 16:55:39 |
| R27.htm | 87848 | 2024-02-21 16:55:39 |
| R28.htm | 12975 | 2024-02-21 16:55:39 |
| R29.htm | 19461 | 2024-02-21 16:55:39 |
| R3.htm | 94588 | 2024-02-21 16:55:39 |
| R30.htm | 131259 | 2024-02-21 16:55:39 |
| R31.htm | 46291 | 2024-02-21 16:55:39 |
| R32.htm | 26322 | 2024-02-21 16:55:39 |
| R33.htm | 23194 | 2024-02-21 16:55:39 |
| R34.htm | 205720 | 2024-02-21 16:55:39 |
| R35.htm | 67657 | 2024-02-21 16:55:39 |
| R36.htm | 24759 | 2024-02-21 16:55:39 |
| R37.htm | 63010 | 2024-02-21 16:55:39 |
| R38.htm | 55850 | 2024-02-21 16:55:39 |
| R39.htm | 35823 | 2024-02-21 16:55:39 |
| R4.htm | 61102 | 2024-02-21 16:55:39 |
| R40.htm | 78497 | 2024-02-21 16:55:39 |
| R41.htm | 54700 | 2024-02-21 16:55:39 |
| R42.htm | 52484 | 2024-02-21 16:55:39 |
| R43.htm | 32189 | 2024-02-21 16:55:39 |
| R44.htm | 183880 | 2024-02-21 16:55:39 |
| R45.htm | 43414 | 2024-02-21 16:55:39 |
| R46.htm | 58484 | 2024-02-21 16:55:39 |
| R47.htm | 6450 | 2024-02-21 16:55:39 |
| R48.htm | 12351 | 2024-02-21 16:55:39 |
| R49.htm | 47635 | 2024-02-21 16:55:39 |
| R5.htm | 23019 | 2024-02-21 16:55:39 |
| R50.htm | 28802 | 2024-02-21 16:55:39 |
| R51.htm | 17091 | 2024-02-21 16:55:39 |
| R52.htm | 27829 | 2024-02-21 16:55:39 |
| R53.htm | 10375 | 2024-02-21 16:55:39 |
| R54.htm | 53376 | 2024-02-21 16:55:39 |
| R55.htm | 69794 | 2024-02-21 16:55:39 |
| R56.htm | 33869 | 2024-02-21 16:55:39 |
| R57.htm | 8453 | 2024-02-21 16:55:39 |
| R58.htm | 19739 | 2024-02-21 16:55:39 |
| R59.htm | 105776 | 2024-02-21 16:55:39 |
| R6.htm | 94752 | 2024-02-21 16:55:39 |
| R60.htm | 51154 | 2024-02-21 16:55:39 |
| R61.htm | 108601 | 2024-02-21 16:55:39 |
| R62.htm | 7185 | 2024-02-21 16:55:39 |
| R63.htm | 8857 | 2024-02-21 16:55:39 |
| R64.htm | 50811 | 2024-02-21 16:55:39 |
| R65.htm | 7056 | 2024-02-21 16:55:39 |
| R66.htm | 22442 | 2024-02-21 16:55:39 |
| R67.htm | 34026 | 2024-02-21 16:55:39 |
| R68.htm | 8525 | 2024-02-21 16:55:39 |
| R69.htm | 8265 | 2024-02-21 16:55:39 |
| R7.htm | 190044 | 2024-02-21 16:55:39 |
| R70.htm | 63017 | 2024-02-21 16:55:39 |
| R71.htm | 37705 | 2024-02-21 16:55:39 |
| R72.htm | 33042 | 2024-02-21 16:55:39 |
| R73.htm | 18802 | 2024-02-21 16:55:39 |
| R74.htm | 18178 | 2024-02-21 16:55:39 |
| R75.htm | 40118 | 2024-02-21 16:55:39 |
| R76.htm | 24910 | 2024-02-21 16:55:39 |
| R77.htm | 41870 | 2024-02-21 16:55:39 |
| R78.htm | 14257 | 2024-02-21 16:55:39 |
| R79.htm | 5539 | 2024-02-21 16:55:39 |
| R8.htm | 13505 | 2024-02-21 16:55:39 |
| R80.htm | 10590 | 2024-02-21 16:55:39 |
| R81.htm | 76982 | 2024-02-21 16:55:39 |
| R82.htm | 81425 | 2024-02-21 16:55:39 |
| R83.htm | 75270 | 2024-02-21 16:55:39 |
| R84.htm | 17694 | 2024-02-21 16:55:39 |
| R85.htm | 40681 | 2024-02-21 16:55:39 |
| R86.htm | 60622 | 2024-02-21 16:55:39 |
| R87.htm | 13029 | 2024-02-21 16:55:39 |
| R88.htm | 23505 | 2024-02-21 16:55:39 |
| R89.htm | 5181 | 2024-02-21 16:55:39 |
| R9.htm | 77616 | 2024-02-21 16:55:39 |
| R90.htm | 11837 | 2024-02-21 16:55:39 |
| R91.htm | 6910 | 2024-02-21 16:55:39 |
| R92.htm | 6811 | 2024-02-21 16:55:39 |
| R93.htm | 34343 | 2024-02-21 16:55:39 |
| R94.htm | 31754 | 2024-02-21 16:55:39 |
| R95.htm | 38336 | 2024-02-21 16:55:39 |
| R96.htm | 73206 | 2024-02-21 16:55:39 |
| R97.htm | 52157 | 2024-02-21 16:55:39 |
| R98.htm | 33590 | 2024-02-21 16:55:39 |
| R99.htm | 18114 | 2024-02-21 16:55:39 |
| report.css | 2768 | 2024-02-21 16:55:39 |
| Show.js | 1086 | 2024-02-21 16:55:39 |