Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-22-013344-index-headers.html | 2022-05-09 16:33:22 | |
| 0001628280-22-013344-index.html | 2022-05-09 16:33:22 | |
| 0001628280-22-013344.txt | 2022-05-09 16:33:22 | |
 0001628280-22-013344-xbrl.zip | 11611 | 2022-05-09 16:33:22 |
| cpk-20220504.htm | 38773 | 2022-05-09 16:33:22 |
| cpk-20220504.xsd | 1965 | 2022-05-09 16:33:22 |
| cpk-20220504_htm.xml | 11820 | 2022-05-09 16:33:22 |
| cpk-20220504_lab.xml | 24229 | 2022-05-09 16:33:22 |
| cpk-20220504_pre.xml | 12660 | 2022-05-09 16:33:22 |
| FilingSummary.xml | 1672 | 2022-05-09 16:33:22 |
| Financial_Report.xlsx | 5681 | 2022-05-09 16:33:22 |
| MetaLinks.json | 17133 | 2022-05-09 16:33:22 |
| R1.htm | 38718 | 2022-05-09 16:33:22 |
| report.css | 2766 | 2022-05-09 16:33:22 |
| Show.js | 1084 | 2022-05-09 16:33:22 |