Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000048732-18-000005-index-headers.html | 2018-02-22 06:29:32 | |
| 0000048732-18-000005-index.html | 2018-02-22 06:29:32 | |
| 0000048732-18-000005.txt | 2018-02-22 06:29:32 | |
 0000048732-18-000005-xbrl.zip | 214634 | 2018-02-22 06:29:32 |
| cehe-20171231.xml | 1530181 | 2018-02-22 06:29:32 |
| cehe-20171231.xsd | 42440 | 2018-02-22 06:29:32 |
| cehe-20171231_cal.xml | 78235 | 2018-02-22 06:29:32 |
| cehe-20171231_def.xml | 285602 | 2018-02-22 06:29:32 |
| cehe-20171231_lab.xml | 706267 | 2018-02-22 06:29:32 |
| cehe-20171231_pre.xml | 387241 | 2018-02-22 06:29:32 |
| cehe_10kx12312017.htm | 1539616 | 2018-02-22 06:29:32 |
| cehe_exhibit12x12312017.htm | 55575 | 2018-02-22 06:29:32 |
| cehe_exhibit23x12312017.htm | 3040 | 2018-02-22 06:29:32 |
| cehe_exhibit311x12312017.htm | 13008 | 2018-02-22 06:29:32 |
| cehe_exhibit312x12312017.htm | 12759 | 2018-02-22 06:29:32 |
| cehe_exhibit321x12312017.htm | 6012 | 2018-02-22 06:29:32 |
| cehe_exhibit322x12312017.htm | 6022 | 2018-02-22 06:29:32 |
 electric.jpg | 19386 | 2018-02-22 06:29:32 |
| FilingSummary.xml | 25875 | 2018-02-22 06:29:32 |
| Financial_Report.xlsx | 71930 | 2018-02-22 06:29:32 |
| R1.htm | 27802 | 2018-02-22 06:29:32 |
| R10.htm | 55969 | 2018-02-22 06:29:32 |
| R11.htm | 51091 | 2018-02-22 06:29:32 |
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| R2.htm | 31971 | 2018-02-22 06:29:32 |
| R20.htm | 93654 | 2018-02-22 06:29:32 |
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| R22.htm | 51625 | 2018-02-22 06:29:32 |
| R23.htm | 51267 | 2018-02-22 06:29:32 |
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| R25.htm | 17855 | 2018-02-22 06:29:32 |
| R26.htm | 32060 | 2018-02-22 06:29:32 |
| R27.htm | 88097 | 2018-02-22 06:29:32 |
| R28.htm | 80957 | 2018-02-22 06:29:32 |
| R29.htm | 35239 | 2018-02-22 06:29:32 |
| R3.htm | 12662 | 2018-02-22 06:29:32 |
| R30.htm | 4040 | 2018-02-22 06:29:32 |
| R31.htm | 23360 | 2018-02-22 06:29:32 |
| R32.htm | 44741 | 2018-02-22 06:29:32 |
| R33.htm | 59262 | 2018-02-22 06:29:32 |
| R34.htm | 135636 | 2018-02-22 06:29:32 |
| R35.htm | 87112 | 2018-02-22 06:29:32 |
| R36.htm | 10843 | 2018-02-22 06:29:32 |
| R37.htm | 28146 | 2018-02-22 06:29:32 |
| R38.htm | 36840 | 2018-02-22 06:29:32 |
| R39.htm | 115812 | 2018-02-22 06:29:32 |
| R4.htm | 3675 | 2018-02-22 06:29:32 |
| R40.htm | 79089 | 2018-02-22 06:29:32 |
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| R42.htm | 12792 | 2018-02-22 06:29:32 |
| R5.htm | 92437 | 2018-02-22 06:29:32 |
| R6.htm | 15295 | 2018-02-22 06:29:32 |
| R7.htm | 87749 | 2018-02-22 06:29:32 |
| R8.htm | 24759 | 2018-02-22 06:29:32 |
| R9.htm | 6030 | 2018-02-22 06:29:32 |
| report.css | 2767 | 2018-02-22 06:29:32 |
| Show.js | 1410 | 2018-02-22 06:29:32 |