Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000320575-16-000140-index-headers.html | 2016-07-28 15:30:42 | |
| 0000320575-16-000140-index.html | 2016-07-28 15:30:42 | |
| 0000320575-16-000140.txt | 2016-07-28 15:30:42 | |
 0000320575-16-000140-xbrl.zip | 259210 | 2016-07-28 15:30:42 |
| exhibit103pesphantomstocku.htm | 86882 | 2016-07-28 15:30:42 |
| exhibit3112q2016.htm | 11993 | 2016-07-28 15:30:42 |
| exhibit3122q2016.htm | 11850 | 2016-07-28 15:30:42 |
| exhibit3212q2016.htm | 5998 | 2016-07-28 15:30:42 |
| exhibit3222q2016.htm | 6033 | 2016-07-28 15:30:42 |
| FilingSummary.xml | 31530 | 2016-07-28 15:30:42 |
| Financial_Report.xlsx | 76565 | 2016-07-28 15:30:42 |
| form10q-q22016.htm | 1801441 | 2016-07-28 15:30:42 |
 marketconditionsgraph.jpg | 50719 | 2016-07-28 15:30:42 |
| pes-20160630.xml | 2851720 | 2016-07-28 15:30:42 |
| pes-20160630.xsd | 70068 | 2016-07-28 15:30:42 |
| pes-20160630_cal.xml | 99814 | 2016-07-28 15:30:42 |
| pes-20160630_def.xml | 361726 | 2016-07-28 15:30:42 |
| pes-20160630_lab.xml | 780031 | 2016-07-28 15:30:42 |
| pes-20160630_pre.xml | 494872 | 2016-07-28 15:30:42 |
| R1.htm | 20362 | 2016-07-28 15:30:42 |
| R10.htm | 19685 | 2016-07-28 15:30:42 |
| R11.htm | 50605 | 2016-07-28 15:30:42 |
| R12.htm | 85386 | 2016-07-28 15:30:42 |
| R13.htm | 167163 | 2016-07-28 15:30:42 |
| R14.htm | 7085 | 2016-07-28 15:30:42 |
| R15.htm | 650298 | 2016-07-28 15:30:42 |
| R16.htm | 48454 | 2016-07-28 15:30:42 |
| R17.htm | 61106 | 2016-07-28 15:30:42 |
| R18.htm | 18069 | 2016-07-28 15:30:42 |
| R19.htm | 16193 | 2016-07-28 15:30:42 |
| R2.htm | 97933 | 2016-07-28 15:30:42 |
| R20.htm | 49606 | 2016-07-28 15:30:42 |
| R21.htm | 70761 | 2016-07-28 15:30:42 |
| R22.htm | 166674 | 2016-07-28 15:30:42 |
| R23.htm | 651738 | 2016-07-28 15:30:42 |
| R24.htm | 44088 | 2016-07-28 15:30:42 |
| R25.htm | 22795 | 2016-07-28 15:30:42 |
| R26.htm | 16084 | 2016-07-28 15:30:42 |
| R27.htm | 53720 | 2016-07-28 15:30:42 |
| R28.htm | 49395 | 2016-07-28 15:30:42 |
| R29.htm | 7650 | 2016-07-28 15:30:42 |
| R3.htm | 19121 | 2016-07-28 15:30:42 |
| R30.htm | 15670 | 2016-07-28 15:30:42 |
| R31.htm | 162667 | 2016-07-28 15:30:42 |
| R32.htm | 9663 | 2016-07-28 15:30:42 |
| R33.htm | 27402 | 2016-07-28 15:30:42 |
| R34.htm | 63159 | 2016-07-28 15:30:42 |
| R35.htm | 16905 | 2016-07-28 15:30:42 |
| R36.htm | 15848 | 2016-07-28 15:30:42 |
| R37.htm | 19397 | 2016-07-28 15:30:42 |
| R38.htm | 7484 | 2016-07-28 15:30:42 |
| R39.htm | 35216 | 2016-07-28 15:30:42 |
| R4.htm | 59602 | 2016-07-28 15:30:42 |
| R40.htm | 17153 | 2016-07-28 15:30:42 |
| R41.htm | 21302 | 2016-07-28 15:30:42 |
| R42.htm | 4479 | 2016-07-28 15:30:42 |
| R43.htm | 111708 | 2016-07-28 15:30:42 |
| R44.htm | 88916 | 2016-07-28 15:30:42 |
| R45.htm | 61947 | 2016-07-28 15:30:42 |
| R5.htm | 83052 | 2016-07-28 15:30:42 |
| R6.htm | 88503 | 2016-07-28 15:30:42 |
| R7.htm | 18471 | 2016-07-28 15:30:42 |
| R8.htm | 9479 | 2016-07-28 15:30:42 |
| R9.htm | 80725 | 2016-07-28 15:30:42 |
| report.css | 2767 | 2016-07-28 15:30:42 |
| Show.js | 1410 | 2016-07-28 15:30:42 |