Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000048732-18-000009-index-headers.html | 2018-05-04 06:28:30 | |
| 0000048732-18-000009-index.html | 2018-05-04 06:28:30 | |
| 0000048732-18-000009.txt | 2018-05-04 06:28:30 | |
 0000048732-18-000009-xbrl.zip | 116456 | 2018-05-04 06:28:30 |
| cehe-20180331.xml | 626742 | 2018-05-04 06:28:30 |
| cehe-20180331.xsd | 27810 | 2018-05-04 06:28:30 |
| cehe-20180331_cal.xml | 60906 | 2018-05-04 06:28:30 |
| cehe-20180331_def.xml | 130430 | 2018-05-04 06:28:30 |
| cehe-20180331_lab.xml | 380536 | 2018-05-04 06:28:30 |
| cehe-20180331_pre.xml | 210261 | 2018-05-04 06:28:30 |
| ceheq1201810-q.htm | 703730 | 2018-05-04 06:28:30 |
| cehe_exhibit12x3312018.htm | 23742 | 2018-05-04 06:28:30 |
| cehe_exhibit311x3312018.htm | 12969 | 2018-05-04 06:28:30 |
| cehe_exhibit312x3312018.htm | 12720 | 2018-05-04 06:28:30 |
| cehe_exhibit321x3312018.htm | 6013 | 2018-05-04 06:28:30 |
| cehe_exhibit322x3312018.htm | 6023 | 2018-05-04 06:28:30 |
| cehe_exhibit44x3312018.htm | 27112 | 2018-05-04 06:28:30 |
| cehe_exhibit45x3312018.htm | 80093 | 2018-05-04 06:28:30 |
| FilingSummary.xml | 22635 | 2018-05-04 06:28:30 |
| Financial_Report.xlsx | 45679 | 2018-05-04 06:28:30 |
| R1.htm | 28507 | 2018-05-04 06:28:30 |
| R10.htm | 20788 | 2018-05-04 06:28:30 |
| R11.htm | 19494 | 2018-05-04 06:28:30 |
| R12.htm | 41199 | 2018-05-04 06:28:30 |
| R13.htm | 22146 | 2018-05-04 06:28:30 |
| R14.htm | 40063 | 2018-05-04 06:28:30 |
| R15.htm | 41987 | 2018-05-04 06:28:30 |
| R16.htm | 12857 | 2018-05-04 06:28:30 |
| R17.htm | 6638 | 2018-05-04 06:28:30 |
| R18.htm | 25283 | 2018-05-04 06:28:30 |
| R19.htm | 47963 | 2018-05-04 06:28:30 |
| R2.htm | 31295 | 2018-05-04 06:28:30 |
| R20.htm | 16366 | 2018-05-04 06:28:30 |
| R21.htm | 19371 | 2018-05-04 06:28:30 |
| R22.htm | 40776 | 2018-05-04 06:28:30 |
| R23.htm | 16200 | 2018-05-04 06:28:30 |
| R24.htm | 41765 | 2018-05-04 06:28:30 |
| R25.htm | 39947 | 2018-05-04 06:28:30 |
| R26.htm | 24412 | 2018-05-04 06:28:30 |
| R27.htm | 4066 | 2018-05-04 06:28:30 |
| R28.htm | 10333 | 2018-05-04 06:28:30 |
| R29.htm | 10740 | 2018-05-04 06:28:30 |
| R3.htm | 12435 | 2018-05-04 06:28:30 |
| R30.htm | 19679 | 2018-05-04 06:28:30 |
| R31.htm | 38228 | 2018-05-04 06:28:30 |
| R32.htm | 29898 | 2018-05-04 06:28:30 |
| R33.htm | 29164 | 2018-05-04 06:28:30 |
| R34.htm | 46398 | 2018-05-04 06:28:30 |
| R35.htm | 7565 | 2018-05-04 06:28:30 |
| R36.htm | 21087 | 2018-05-04 06:28:30 |
| R4.htm | 3615 | 2018-05-04 06:28:30 |
| R5.htm | 96078 | 2018-05-04 06:28:30 |
| R6.htm | 14894 | 2018-05-04 06:28:30 |
| R7.htm | 74774 | 2018-05-04 06:28:30 |
| R8.htm | 10074 | 2018-05-04 06:28:30 |
| R9.htm | 47234 | 2018-05-04 06:28:30 |
| report.css | 2767 | 2018-05-04 06:28:30 |
| Show.js | 1410 | 2018-05-04 06:28:30 |