Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0000048732-12-000011-index.html | 2012-05-09 16:22:28 | |
| 0000048732-12-000011.txt | 2012-05-09 16:22:28 | |
 0000048732-12-000011-xbrl.zip | 54824 | 2012-05-09 16:22:28 |
| cehe-20120331.xml | 139376 | 2012-05-09 16:22:28 |
| cehe-20120331.xsd | 17265 | 2012-05-09 16:22:28 |
| cehe-20120331_cal.xml | 52441 | 2012-05-09 16:22:28 |
| cehe-20120331_def.xml | 33146 | 2012-05-09 16:22:28 |
| cehe-20120331_lab.xml | 209375 | 2012-05-09 16:22:28 |
| cehe-20120331_pre.xml | 104689 | 2012-05-09 16:22:28 |
| ceheq1201210-q.htm | 640799 | 2012-05-09 16:22:28 |
| cehe_exhibit12x03312012.htm | 24212 | 2012-05-09 16:22:28 |
| cehe_exhibit311x03312012.htm | 13075 | 2012-05-09 16:22:28 |
| cehe_exhibit312x03312012.htm | 12817 | 2012-05-09 16:22:28 |
| cehe_exhibit321x03312012.htm | 6072 | 2012-05-09 16:22:28 |
| cehe_exhibit322x03312012.htm | 6073 | 2012-05-09 16:22:28 |
| FilingSummary.xml | 7920 | 2012-05-09 16:22:28 |
| Financial_Report.xls | 132015 | 2012-05-09 16:22:28 |
| R1.htm | 37343 | 2012-05-09 16:22:28 |
| R10.htm | 30528 | 2012-05-09 16:22:28 |
| R11.htm | 16586 | 2012-05-09 16:22:28 |
| R12.htm | 22694 | 2012-05-09 16:22:28 |
| R13.htm | 16910 | 2012-05-09 16:22:28 |
| R14.htm | 20136 | 2012-05-09 16:22:28 |
| R2.htm | 47419 | 2012-05-09 16:22:28 |
| R3.htm | 166981 | 2012-05-09 16:22:28 |
| R4.htm | 13515 | 2012-05-09 16:22:28 |
| R5.htm | 136168 | 2012-05-09 16:22:28 |
| R6.htm | 14995 | 2012-05-09 16:22:28 |
| R7.htm | 7504 | 2012-05-09 16:22:28 |
| R8.htm | 27262 | 2012-05-09 16:22:28 |
| R9.htm | 6914 | 2012-05-09 16:22:28 |
| report.css | 2721 | 2012-05-09 16:22:28 |
| Show.js | 6423 | 2012-05-09 16:22:28 |