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| 0001174947-17-001285-index.html | 2017-09-14 16:08:36 | |
| 0001174947-17-001285.txt | 2017-09-14 16:08:36 | |
 0001174947-17-001285-xbrl.zip | 98336 | 2017-09-14 16:08:36 |
| esp-20170630.xml | 476457 | 2017-09-14 16:08:36 |
| esp-20170630.xsd | 35041 | 2017-09-14 16:08:36 |
| esp-20170630_cal.xml | 68274 | 2017-09-14 16:08:36 |
| esp-20170630_def.xml | 89669 | 2017-09-14 16:08:36 |
| esp-20170630_lab.xml | 320301 | 2017-09-14 16:08:36 |
| esp-20170630_pre.xml | 243106 | 2017-09-14 16:08:36 |
| ex10-5.htm | 5492 | 2017-09-14 16:08:36 |
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| ex32-2.htm | 3736 | 2017-09-14 16:08:36 |
| FilingSummary.xml | 34286 | 2017-09-14 16:08:36 |
| Financial_Report.xlsx | 71909 | 2017-09-14 16:08:36 |
| form10k-18640_esp.htm | 409487 | 2017-09-14 16:08:36 |
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| report.css | 2767 | 2017-09-14 16:08:36 |
| Show.js | 1410 | 2017-09-14 16:08:36 |