Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001174947-19-000204-index-headers.html | 2019-02-13 15:48:46 | |
| 0001174947-19-000204-index.html | 2019-02-13 15:48:46 | |
| 0001174947-19-000204.txt | 2019-02-13 15:48:46 | |
 0001174947-19-000204-xbrl.zip | 57172 | 2019-02-13 15:48:46 |
| esp-20181231.xml | 253872 | 2019-02-13 15:48:46 |
| esp-20181231.xsd | 19604 | 2019-02-13 15:48:46 |
| esp-20181231_cal.xml | 47331 | 2019-02-13 15:48:46 |
| esp-20181231_def.xml | 50281 | 2019-02-13 15:48:46 |
| esp-20181231_lab.xml | 228504 | 2019-02-13 15:48:46 |
| esp-20181231_pre.xml | 153589 | 2019-02-13 15:48:46 |
| ex31-1.htm | 8946 | 2019-02-13 15:48:46 |
| ex31-2.htm | 9068 | 2019-02-13 15:48:46 |
| ex32-1.htm | 3748 | 2019-02-13 15:48:46 |
| ex32-2.htm | 3981 | 2019-02-13 15:48:46 |
| FilingSummary.xml | 15637 | 2019-02-13 15:48:46 |
| Financial_Report.xlsx | 34903 | 2019-02-13 15:48:46 |
| form10q-21380_esp.htm | 257565 | 2019-02-13 15:48:46 |
 image_001.jpg | 5181 | 2019-02-13 15:48:46 |
| R1.htm | 23926 | 2019-02-13 15:48:46 |
| R10.htm | 6510 | 2019-02-13 15:48:46 |
| R11.htm | 12402 | 2019-02-13 15:48:46 |
| R12.htm | 11798 | 2019-02-13 15:48:46 |
| R13.htm | 36709 | 2019-02-13 15:48:46 |
| R14.htm | 26432 | 2019-02-13 15:48:46 |
| R15.htm | 9400 | 2019-02-13 15:48:46 |
| R16.htm | 16628 | 2019-02-13 15:48:46 |
| R17.htm | 10158 | 2019-02-13 15:48:46 |
| R18.htm | 5034 | 2019-02-13 15:48:46 |
| R19.htm | 48928 | 2019-02-13 15:48:46 |
| R2.htm | 85292 | 2019-02-13 15:48:46 |
| R20.htm | 14311 | 2019-02-13 15:48:46 |
| R21.htm | 51966 | 2019-02-13 15:48:46 |
| R22.htm | 19891 | 2019-02-13 15:48:46 |
| R23.htm | 4209 | 2019-02-13 15:48:46 |
| R24.htm | 24038 | 2019-02-13 15:48:46 |
| R25.htm | 17548 | 2019-02-13 15:48:46 |
| R26.htm | 13091 | 2019-02-13 15:48:46 |
| R3.htm | 17332 | 2019-02-13 15:48:46 |
| R4.htm | 57516 | 2019-02-13 15:48:46 |
| R5.htm | 77878 | 2019-02-13 15:48:46 |
| R6.htm | 6041 | 2019-02-13 15:48:46 |
| R7.htm | 38578 | 2019-02-13 15:48:46 |
| R8.htm | 5121 | 2019-02-13 15:48:46 |
| R9.htm | 34898 | 2019-02-13 15:48:46 |
| report.css | 2767 | 2019-02-13 15:48:46 |
| Show.js | 1085 | 2019-02-13 15:48:46 |