Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001174947-20-000167-index-headers.html | 2020-02-13 16:08:18 | |
| 0001174947-20-000167-index.html | 2020-02-13 16:08:18 | |
| 0001174947-20-000167.txt | 2020-02-13 16:08:18 | |
 0001174947-20-000167-xbrl.zip | 60329 | 2020-02-13 16:08:18 |
| esp-20191231.xml | 281578 | 2020-02-13 16:08:18 |
| esp-20191231.xsd | 21071 | 2020-02-13 16:08:18 |
| esp-20191231_cal.xml | 45398 | 2020-02-13 16:08:18 |
| esp-20191231_def.xml | 60609 | 2020-02-13 16:08:18 |
| esp-20191231_lab.xml | 239416 | 2020-02-13 16:08:18 |
| esp-20191231_pre.xml | 166309 | 2020-02-13 16:08:18 |
| ex31-1.htm | 9063 | 2020-02-13 16:08:18 |
| ex31-2.htm | 9109 | 2020-02-13 16:08:18 |
| ex32-1.htm | 3692 | 2020-02-13 16:08:18 |
| ex32-2.htm | 3771 | 2020-02-13 16:08:18 |
| FilingSummary.xml | 17212 | 2020-02-13 16:08:18 |
| Financial_Report.xlsx | 38526 | 2020-02-13 16:08:18 |
| form10q-23367_esp.htm | 465013 | 2020-02-13 16:08:18 |
 image_001.jpg | 5713 | 2020-02-13 16:08:18 |
| R1.htm | 32651 | 2020-02-13 16:08:18 |
| R10.htm | 5123 | 2020-02-13 16:08:18 |
| R11.htm | 35113 | 2020-02-13 16:08:18 |
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| R23.htm | 14322 | 2020-02-13 16:08:18 |
| R24.htm | 51968 | 2020-02-13 16:08:18 |
| R25.htm | 19897 | 2020-02-13 16:08:18 |
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| R27.htm | 21294 | 2020-02-13 16:08:18 |
| R28.htm | 17971 | 2020-02-13 16:08:18 |
| R29.htm | 13093 | 2020-02-13 16:08:18 |
| R3.htm | 17515 | 2020-02-13 16:08:18 |
| R4.htm | 57507 | 2020-02-13 16:08:18 |
| R5.htm | 50943 | 2020-02-13 16:08:18 |
| R6.htm | 7271 | 2020-02-13 16:08:18 |
| R7.htm | 77612 | 2020-02-13 16:08:18 |
| R8.htm | 6417 | 2020-02-13 16:08:18 |
| R9.htm | 24688 | 2020-02-13 16:08:18 |
| report.css | 2767 | 2020-02-13 16:08:18 |
| Show.js | 1085 | 2020-02-13 16:08:18 |