Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001174947-22-000020-index-headers.html | 2022-01-04 14:29:54 | |
| 0001174947-22-000020-index.html | 2022-01-04 14:29:54 | |
| 0001174947-22-000020.txt | 2022-01-04 14:29:54 | |
 0001174947-22-000020-xbrl.zip | 48876 | 2022-01-04 14:29:54 |
| esp-20211231.xsd | 3021 | 2022-01-04 14:29:54 |
| esp-20211231_lab.xml | 35156 | 2022-01-04 14:29:54 |
| esp-20211231_pre.xml | 23022 | 2022-01-04 14:29:54 |
| ex10-13.htm | 76186 | 2022-01-04 14:29:54 |
| ex10-20.htm | 69737 | 2022-01-04 14:29:54 |
| ex99-1.htm | 8001 | 2022-01-04 14:29:54 |
| FilingSummary.xml | 1736 | 2022-01-04 14:29:54 |
| Financial_Report.xlsx | 5722 | 2022-01-04 14:29:54 |
| form8k-27152_esp.htm | 26750 | 2022-01-04 14:29:54 |
| form8k-27152_esp_htm.xml | 3660 | 2022-01-04 14:29:54 |
 image_001.jpg | 3509 | 2022-01-04 14:29:54 |
 image_002.jpg | 3509 | 2022-01-04 14:29:54 |
| MetaLinks.json | 38330 | 2022-01-04 14:29:54 |
| R1.htm | 40194 | 2022-01-04 14:29:54 |
| report.css | 2767 | 2022-01-04 14:29:54 |
| Show.js | 1085 | 2022-01-04 14:29:54 |