Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-19-002015-index-headers.html | 2019-02-26 18:04:44 | |
| 0001628280-19-002015-index.html | 2019-02-26 18:04:44 | |
| 0001628280-19-002015.txt | 2019-02-26 18:04:44 | |
 0001628280-19-002015-xbrl.zip | 554848 | 2019-02-26 18:04:44 |
 chart-c3f7df7a2f33579f8bf.jpg | 63768 | 2019-02-26 18:04:44 |
| cpk-20181231.xml | 5407896 | 2019-02-26 18:04:44 |
| cpk-20181231.xsd | 150114 | 2019-02-26 18:04:44 |
| cpk-20181231_cal.xml | 136471 | 2019-02-26 18:04:44 |
| cpk-20181231_def.xml | 762654 | 2019-02-26 18:04:44 |
| cpk-20181231_lab.xml | 1567745 | 2019-02-26 18:04:44 |
| cpk-20181231_pre.xml | 1041146 | 2019-02-26 18:04:44 |
| cpk1231201810-k.htm | 4182808 | 2019-02-26 18:04:44 |
| cpk12312018ex-1020.htm | 240433 | 2019-02-26 18:04:44 |
| cpk12312018ex-1023.htm | 68613 | 2019-02-26 18:04:44 |
| cpk12312018ex-1026.htm | 210128 | 2019-02-26 18:04:44 |
| cpk12312018ex-21.htm | 16566 | 2019-02-26 18:04:44 |
| cpk12312018ex-231.htm | 5615 | 2019-02-26 18:04:44 |
| cpk12312018ex-311.htm | 12269 | 2019-02-26 18:04:44 |
| cpk12312018ex-312.htm | 12279 | 2019-02-26 18:04:44 |
| cpk12312018ex-321.htm | 4934 | 2019-02-26 18:04:44 |
| cpk12312018ex-322.htm | 5038 | 2019-02-26 18:04:44 |
 cpk12312018ex1023image1.jpg | 9307 | 2019-02-26 18:04:44 |
| cpk12312018ex1024.htm | 47564 | 2019-02-26 18:04:44 |
| cpk12312018ex1025.htm | 130378 | 2019-02-26 18:04:44 |
| FilingSummary.xml | 77054 | 2019-02-26 18:04:44 |
| Financial_Report.xlsx | 196374 | 2019-02-26 18:04:44 |
| R1.htm | 35678 | 2019-02-26 18:04:44 |
| R10.htm | 8660 | 2019-02-26 18:04:44 |
| R100.htm | 87544 | 2019-02-26 18:04:44 |
| R101.htm | 83573 | 2019-02-26 18:04:44 |
| R102.htm | 47151 | 2019-02-26 18:04:44 |
| R103.htm | 4983 | 2019-02-26 18:04:44 |
| R104.htm | 18732 | 2019-02-26 18:04:44 |
| R105.htm | 23784 | 2019-02-26 18:04:44 |
| R106.htm | 108890 | 2019-02-26 18:04:44 |
| R107.htm | 89833 | 2019-02-26 18:04:44 |
| R108.htm | 96070 | 2019-02-26 18:04:44 |
| R109.htm | 10452 | 2019-02-26 18:04:44 |
| R11.htm | 163323 | 2019-02-26 18:04:44 |
| R110.htm | 32652 | 2019-02-26 18:04:44 |
| R111.htm | 6598 | 2019-02-26 18:04:44 |
| R112.htm | 38975 | 2019-02-26 18:04:44 |
| R113.htm | 19382 | 2019-02-26 18:04:44 |
| R114.htm | 21599 | 2019-02-26 18:04:44 |
| R115.htm | 33271 | 2019-02-26 18:04:44 |
| R116.htm | 9052 | 2019-02-26 18:04:44 |
| R117.htm | 85904 | 2019-02-26 18:04:44 |
| R118.htm | 51696 | 2019-02-26 18:04:44 |
| R119.htm | 19068 | 2019-02-26 18:04:44 |
| R12.htm | 37746 | 2019-02-26 18:04:44 |
| R120.htm | 40638 | 2019-02-26 18:04:44 |
| R121.htm | 28621 | 2019-02-26 18:04:44 |
| R122.htm | 11625 | 2019-02-26 18:04:44 |
| R123.htm | 24480 | 2019-02-26 18:04:44 |
| R124.htm | 11336 | 2019-02-26 18:04:44 |
| R13.htm | 10948 | 2019-02-26 18:04:44 |
| R14.htm | 172521 | 2019-02-26 18:04:44 |
| R15.htm | 96058 | 2019-02-26 18:04:44 |
| R16.htm | 33302 | 2019-02-26 18:04:44 |
| R17.htm | 53865 | 2019-02-26 18:04:44 |
| R18.htm | 103197 | 2019-02-26 18:04:44 |
| R19.htm | 15844 | 2019-02-26 18:04:44 |
| R2.htm | 60656 | 2019-02-26 18:04:44 |
| R20.htm | 47077 | 2019-02-26 18:04:44 |
| R21.htm | 105485 | 2019-02-26 18:04:44 |
| R22.htm | 86055 | 2019-02-26 18:04:44 |
| R23.htm | 40164 | 2019-02-26 18:04:44 |
| R24.htm | 21369 | 2019-02-26 18:04:44 |
| R25.htm | 89527 | 2019-02-26 18:04:44 |
| R26.htm | 601893 | 2019-02-26 18:04:44 |
| R27.htm | 69650 | 2019-02-26 18:04:44 |
| R28.htm | 92251 | 2019-02-26 18:04:44 |
| R29.htm | 15962 | 2019-02-26 18:04:44 |
| R3.htm | 24847 | 2019-02-26 18:04:44 |
| R30.htm | 27780 | 2019-02-26 18:04:44 |
| R31.htm | 60992 | 2019-02-26 18:04:44 |
| R32.htm | 209866 | 2019-02-26 18:04:44 |
| R33.htm | 116485 | 2019-02-26 18:04:44 |
| R34.htm | 37827 | 2019-02-26 18:04:44 |
| R35.htm | 162814 | 2019-02-26 18:04:44 |
| R36.htm | 92763 | 2019-02-26 18:04:44 |
| R37.htm | 35208 | 2019-02-26 18:04:44 |
| R38.htm | 158970 | 2019-02-26 18:04:44 |
| R39.htm | 94437 | 2019-02-26 18:04:44 |
| R4.htm | 9990 | 2019-02-26 18:04:44 |
| R40.htm | 12483 | 2019-02-26 18:04:44 |
| R41.htm | 46568 | 2019-02-26 18:04:44 |
| R42.htm | 105403 | 2019-02-26 18:04:44 |
| R43.htm | 81443 | 2019-02-26 18:04:44 |
| R44.htm | 35715 | 2019-02-26 18:04:44 |
| R45.htm | 18692 | 2019-02-26 18:04:44 |
| R46.htm | 89032 | 2019-02-26 18:04:44 |
| R47.htm | 590498 | 2019-02-26 18:04:44 |
| R48.htm | 63805 | 2019-02-26 18:04:44 |
| R49.htm | 49397 | 2019-02-26 18:04:44 |
| R5.htm | 94263 | 2019-02-26 18:04:44 |
| R50.htm | 26571 | 2019-02-26 18:04:44 |
| R51.htm | 13336 | 2019-02-26 18:04:44 |
| R52.htm | 17746 | 2019-02-26 18:04:44 |
| R53.htm | 60116 | 2019-02-26 18:04:44 |
| R54.htm | 40161 | 2019-02-26 18:04:44 |
| R55.htm | 59105 | 2019-02-26 18:04:44 |
| R56.htm | 15068 | 2019-02-26 18:04:44 |
| R57.htm | 25695 | 2019-02-26 18:04:44 |
| R58.htm | 11260 | 2019-02-26 18:04:44 |
| R59.htm | 47159 | 2019-02-26 18:04:44 |
| R6.htm | 139576 | 2019-02-26 18:04:44 |
| R60.htm | 30593 | 2019-02-26 18:04:44 |
| R61.htm | 38469 | 2019-02-26 18:04:44 |
| R62.htm | 17407 | 2019-02-26 18:04:44 |
| R63.htm | 123488 | 2019-02-26 18:04:44 |
| R64.htm | 51115 | 2019-02-26 18:04:44 |
| R65.htm | 98347 | 2019-02-26 18:04:44 |
| R66.htm | 7263 | 2019-02-26 18:04:44 |
| R67.htm | 11139 | 2019-02-26 18:04:44 |
| R68.htm | 63293 | 2019-02-26 18:04:44 |
| R69.htm | 26407 | 2019-02-26 18:04:44 |
| R7.htm | 12648 | 2019-02-26 18:04:44 |
| R70.htm | 39652 | 2019-02-26 18:04:44 |
| R71.htm | 10868 | 2019-02-26 18:04:44 |
| R72.htm | 11301 | 2019-02-26 18:04:44 |
| R73.htm | 7675 | 2019-02-26 18:04:44 |
| R74.htm | 51484 | 2019-02-26 18:04:44 |
| R75.htm | 13877 | 2019-02-26 18:04:44 |
| R76.htm | 4398 | 2019-02-26 18:04:44 |
| R77.htm | 9550 | 2019-02-26 18:04:44 |
| R78.htm | 31492 | 2019-02-26 18:04:44 |
| R79.htm | 20292 | 2019-02-26 18:04:44 |
| R8.htm | 74837 | 2019-02-26 18:04:44 |
| R80.htm | 14344 | 2019-02-26 18:04:44 |
| R81.htm | 11720 | 2019-02-26 18:04:44 |
| R82.htm | 34496 | 2019-02-26 18:04:44 |
| R83.htm | 22790 | 2019-02-26 18:04:44 |
| R84.htm | 40721 | 2019-02-26 18:04:44 |
| R85.htm | 5523 | 2019-02-26 18:04:44 |
| R86.htm | 5825 | 2019-02-26 18:04:44 |
| R87.htm | 8388 | 2019-02-26 18:04:44 |
| R88.htm | 58205 | 2019-02-26 18:04:44 |
| R89.htm | 50827 | 2019-02-26 18:04:44 |
| R9.htm | 12270 | 2019-02-26 18:04:44 |
| R90.htm | 35278 | 2019-02-26 18:04:44 |
| R91.htm | 19292 | 2019-02-26 18:04:44 |
| R92.htm | 33480 | 2019-02-26 18:04:44 |
| R93.htm | 43303 | 2019-02-26 18:04:44 |
| R94.htm | 38329 | 2019-02-26 18:04:44 |
| R95.htm | 27276 | 2019-02-26 18:04:44 |
| R96.htm | 19568 | 2019-02-26 18:04:44 |
| R97.htm | 14391 | 2019-02-26 18:04:44 |
| R98.htm | 24856 | 2019-02-26 18:04:44 |
| R99.htm | 38049 | 2019-02-26 18:04:44 |
| report.css | 2768 | 2019-02-26 18:04:44 |
| Show.js | 1086 | 2019-02-26 18:04:44 |