Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000048732-17-000012-index-headers.html | 2017-05-05 06:29:07 | |
| 0000048732-17-000012-index.html | 2017-05-05 06:29:07 | |
| 0000048732-17-000012.txt | 2017-05-05 06:29:07 | |
 0000048732-17-000012-xbrl.zip | 95178 | 2017-05-05 06:29:07 |
| cehe-20170331.xml | 307297 | 2017-05-05 06:29:07 |
| cehe-20170331.xsd | 25549 | 2017-05-05 06:29:07 |
| cehe-20170331_cal.xml | 60249 | 2017-05-05 06:29:07 |
| cehe-20170331_def.xml | 156922 | 2017-05-05 06:29:07 |
| cehe-20170331_lab.xml | 339735 | 2017-05-05 06:29:07 |
| cehe-20170331_pre.xml | 200584 | 2017-05-05 06:29:07 |
| ceheq1201710-q.htm | 586780 | 2017-05-05 06:29:07 |
| cehe_exhibit12x3312017.htm | 23741 | 2017-05-05 06:29:07 |
| cehe_exhibit311x3312017.htm | 12969 | 2017-05-05 06:29:07 |
| cehe_exhibit312x3312017.htm | 12720 | 2017-05-05 06:29:07 |
| cehe_exhibit321x3312017.htm | 6013 | 2017-05-05 06:29:07 |
| cehe_exhibit322x3312017.htm | 6023 | 2017-05-05 06:29:07 |
| FilingSummary.xml | 16631 | 2017-05-05 06:29:07 |
| Financial_Report.xlsx | 34155 | 2017-05-05 06:29:07 |
| R1.htm | 28516 | 2017-05-05 06:29:07 |
| R10.htm | 19474 | 2017-05-05 06:29:07 |
| R11.htm | 5863 | 2017-05-05 06:29:07 |
| R12.htm | 23502 | 2017-05-05 06:29:07 |
| R13.htm | 29223 | 2017-05-05 06:29:07 |
| R14.htm | 42875 | 2017-05-05 06:29:07 |
| R15.htm | 14041 | 2017-05-05 06:29:07 |
| R16.htm | 7625 | 2017-05-05 06:29:07 |
| R17.htm | 18451 | 2017-05-05 06:29:07 |
| R18.htm | 16969 | 2017-05-05 06:29:07 |
| R19.htm | 25818 | 2017-05-05 06:29:07 |
| R2.htm | 31955 | 2017-05-05 06:29:07 |
| R20.htm | 40784 | 2017-05-05 06:29:07 |
| R21.htm | 2467 | 2017-05-05 06:29:07 |
| R22.htm | 18644 | 2017-05-05 06:29:07 |
| R23.htm | 4381 | 2017-05-05 06:29:07 |
| R24.htm | 30222 | 2017-05-05 06:29:07 |
| R25.htm | 25232 | 2017-05-05 06:29:07 |
| R26.htm | 43658 | 2017-05-05 06:29:07 |
| R27.htm | 3535 | 2017-05-05 06:29:07 |
| R3.htm | 13517 | 2017-05-05 06:29:07 |
| R4.htm | 3556 | 2017-05-05 06:29:07 |
| R5.htm | 99878 | 2017-05-05 06:29:07 |
| R6.htm | 15069 | 2017-05-05 06:29:07 |
| R7.htm | 88803 | 2017-05-05 06:29:07 |
| R8.htm | 11038 | 2017-05-05 06:29:07 |
| R9.htm | 16658 | 2017-05-05 06:29:07 |
| report.css | 2767 | 2017-05-05 06:29:07 |
| Show.js | 1410 | 2017-05-05 06:29:07 |