Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000887396-12-000002-index-headers.html | 2012-03-21 11:27:43 | |
| 0000887396-12-000002-index.html | 2012-03-21 11:27:43 | |
| 0000887396-12-000002.txt | 2012-03-21 11:27:43 | |
 0000887396-12-000002-xbrl.zip | 24646 | 2012-03-21 11:27:43 |
| empr-20111231.xml | 102926 | 2012-03-21 11:27:43 |
| empr-20111231.xsd | 6866 | 2012-03-21 11:27:43 |
| empr-20111231_def.xml | 10229 | 2012-03-21 11:27:43 |
| empr-20111231_lab.xml | 60800 | 2012-03-21 11:27:43 |
| empr-20111231_pre.xml | 46231 | 2012-03-21 11:27:43 |
| exhibit10-14.htm | 1182337 | 2012-03-21 11:27:43 |
| exhibit10-15.htm | 88701 | 2012-03-21 11:27:43 |
| exhibit10-18.htm | 1925425 | 2012-03-21 11:27:43 |
| exhibit31.htm | 8171 | 2012-03-21 11:27:43 |
| exhibit32.htm | 4533 | 2012-03-21 11:27:43 |
| FilingSummary.xml | 5910 | 2012-03-21 11:27:43 |
| Financial_Report.xls | 145142 | 2012-03-21 11:27:43 |
| R1.htm | 35570 | 2012-03-21 11:27:43 |
| R10.htm | 5693 | 2012-03-21 11:27:43 |
| r10k-12312011.htm | 427452 | 2012-03-21 11:27:43 |
| R2.htm | 62225 | 2012-03-21 11:27:43 |
| R3.htm | 49802 | 2012-03-21 11:27:43 |
| R4.htm | 143442 | 2012-03-21 11:27:43 |
| R5.htm | 19326 | 2012-03-21 11:27:43 |
| R6.htm | 18976 | 2012-03-21 11:27:43 |
| R7.htm | 11016 | 2012-03-21 11:27:43 |
| R8.htm | 59875 | 2012-03-21 11:27:43 |
| R9.htm | 9905 | 2012-03-21 11:27:43 |
| report.css | 2721 | 2012-03-21 11:27:43 |
| Show.js | 6423 | 2012-03-21 11:27:43 |