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| 0001174947-18-001151-index.html | 2018-09-12 16:04:28 | |
| 0001174947-18-001151.txt | 2018-09-12 16:04:28 | |
 0001174947-18-001151-xbrl.zip | 102797 | 2018-09-12 16:04:28 |
| esp-20180630.xml | 507927 | 2018-09-12 16:04:28 |
| esp-20180630.xsd | 37630 | 2018-09-12 16:04:28 |
| esp-20180630_cal.xml | 67361 | 2018-09-12 16:04:28 |
| esp-20180630_def.xml | 97198 | 2018-09-12 16:04:28 |
| esp-20180630_lab.xml | 332206 | 2018-09-12 16:04:28 |
| esp-20180630_pre.xml | 250590 | 2018-09-12 16:04:28 |
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| ex23-1.htm | 3299 | 2018-09-12 16:04:28 |
| ex31-1.htm | 8836 | 2018-09-12 16:04:28 |
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| ex32-2.htm | 3994 | 2018-09-12 16:04:28 |
| FilingSummary.xml | 35408 | 2018-09-12 16:04:28 |
| Financial_Report.xlsx | 75330 | 2018-09-12 16:04:28 |
| form10k-20796_esp.htm | 431450 | 2018-09-12 16:04:28 |
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| report.css | 2767 | 2018-09-12 16:04:28 |
| Show.js | 1410 | 2018-09-12 16:04:28 |