Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001078271-12-000025-index-headers.html | 2012-05-04 16:22:53 | |
| 0001078271-12-000025-index.html | 2012-05-04 16:22:53 | |
| 0001078271-12-000025.txt | 2012-05-04 16:22:53 | |
 0001078271-12-000025-xbrl.zip | 87126 | 2012-05-04 16:22:53 |
| extr-20120401.xml | 759187 | 2012-05-04 16:22:53 |
| extr-20120401.xsd | 13807 | 2012-05-04 16:22:53 |
| extr-20120401_cal.xml | 52409 | 2012-05-04 16:22:53 |
| extr-20120401_def.xml | 83386 | 2012-05-04 16:22:53 |
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| extr10q040112.htm | 1262573 | 2012-05-04 16:22:53 |
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| extrex312-040112.htm | 14050 | 2012-05-04 16:22:53 |
| extrex321-040112.htm | 6860 | 2012-05-04 16:22:53 |
| extrex322-040112.htm | 6870 | 2012-05-04 16:22:53 |
| FilingSummary.xml | 9074 | 2012-05-04 16:22:53 |
| Financial_Report.xls | 666840 | 2012-05-04 16:22:53 |
| R1.htm | 26689 | 2012-05-04 16:22:53 |
| R10.htm | 22880 | 2012-05-04 16:22:53 |
| R11.htm | 39414 | 2012-05-04 16:22:53 |
| R12.htm | 13175 | 2012-05-04 16:22:53 |
| R13.htm | 46310 | 2012-05-04 16:22:53 |
| R14.htm | 29105 | 2012-05-04 16:22:53 |
| R15.htm | 15838 | 2012-05-04 16:22:53 |
| R16.htm | 69234 | 2012-05-04 16:22:53 |
| R2.htm | 140493 | 2012-05-04 16:22:53 |
| R3.htm | 32828 | 2012-05-04 16:22:53 |
| R4.htm | 107172 | 2012-05-04 16:22:53 |
| R5.htm | 148112 | 2012-05-04 16:22:53 |
| R6.htm | 14929 | 2012-05-04 16:22:53 |
| R7.htm | 333184 | 2012-05-04 16:22:53 |
| R8.htm | 9028 | 2012-05-04 16:22:53 |
| R9.htm | 114734 | 2012-05-04 16:22:53 |
| report.css | 2721 | 2012-05-04 16:22:53 |
| Show.js | 6423 | 2012-05-04 16:22:53 |