Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001174947-18-000807-index-headers.html | 2018-05-14 16:24:37 | |
| 0001174947-18-000807-index.html | 2018-05-14 16:24:37 | |
| 0001174947-18-000807.txt | 2018-05-14 16:24:37 | |
 0001174947-18-000807-xbrl.zip | 53646 | 2018-05-14 16:24:37 |
| esp-20180331.xml | 227293 | 2018-05-14 16:24:37 |
| esp-20180331.xsd | 18488 | 2018-05-14 16:24:37 |
| esp-20180331_cal.xml | 45487 | 2018-05-14 16:24:37 |
| esp-20180331_def.xml | 45397 | 2018-05-14 16:24:37 |
| esp-20180331_lab.xml | 218203 | 2018-05-14 16:24:37 |
| esp-20180331_pre.xml | 146937 | 2018-05-14 16:24:37 |
| ex31-1.htm | 8924 | 2018-05-14 16:24:37 |
| ex31-2.htm | 9109 | 2018-05-14 16:24:37 |
| ex32-1.htm | 3818 | 2018-05-14 16:24:37 |
| ex32-2.htm | 4043 | 2018-05-14 16:24:37 |
| FilingSummary.xml | 15636 | 2018-05-14 16:24:37 |
| Financial_Report.xlsx | 34362 | 2018-05-14 16:24:37 |
| form10q-20221_esp.htm | 230391 | 2018-05-14 16:24:37 |
 image_001.jpg | 34027 | 2018-05-14 16:24:37 |
| R1.htm | 20529 | 2018-05-14 16:24:37 |
| R10.htm | 5525 | 2018-05-14 16:24:37 |
| R11.htm | 12061 | 2018-05-14 16:24:37 |
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| R13.htm | 23335 | 2018-05-14 16:24:37 |
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| R17.htm | 10157 | 2018-05-14 16:24:37 |
| R18.htm | 5037 | 2018-05-14 16:24:37 |
| R19.htm | 50937 | 2018-05-14 16:24:37 |
| R2.htm | 87814 | 2018-05-14 16:24:37 |
| R20.htm | 14311 | 2018-05-14 16:24:37 |
| R21.htm | 51922 | 2018-05-14 16:24:37 |
| R22.htm | 19884 | 2018-05-14 16:24:37 |
| R23.htm | 4208 | 2018-05-14 16:24:37 |
| R24.htm | 11196 | 2018-05-14 16:24:37 |
| R25.htm | 17535 | 2018-05-14 16:24:37 |
| R26.htm | 13094 | 2018-05-14 16:24:37 |
| R3.htm | 19475 | 2018-05-14 16:24:37 |
| R4.htm | 57510 | 2018-05-14 16:24:37 |
| R5.htm | 75826 | 2018-05-14 16:24:37 |
| R6.htm | 6040 | 2018-05-14 16:24:37 |
| R7.htm | 25240 | 2018-05-14 16:24:37 |
| R8.htm | 5120 | 2018-05-14 16:24:37 |
| R9.htm | 34350 | 2018-05-14 16:24:37 |
| report.css | 2767 | 2018-05-14 16:24:37 |
| Show.js | 1410 | 2018-05-14 16:24:37 |