Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000320575-21-000032-index-headers.html | 2021-05-14 10:02:28 | |
| 0000320575-21-000032-index.html | 2021-05-14 10:02:28 | |
| 0000320575-21-000032.txt | 2021-05-14 10:02:28 | |
 0000320575-21-000032-xbrl.zip | 24325 | 2021-05-14 10:02:28 |
| exhibit41-secondsupplement.htm | 45641 | 2021-05-14 10:02:28 |
| exhibit42-firstsupplementa.htm | 28491 | 2021-05-14 10:02:28 |
| FilingSummary.xml | 1772 | 2021-05-14 10:02:28 |
| Financial_Report.xlsx | 5892 | 2021-05-14 10:02:28 |
| MetaLinks.json | 18691 | 2021-05-14 10:02:28 |
| pes-20210511.htm | 35674 | 2021-05-14 10:02:28 |
| pes-20210511.xsd | 2439 | 2021-05-14 10:02:28 |
| pes-20210511_cal.xml | 723 | 2021-05-14 10:02:28 |
| pes-20210511_def.xml | 12682 | 2021-05-14 10:02:28 |
| pes-20210511_htm.xml | 11276 | 2021-05-14 10:02:28 |
| pes-20210511_lab.xml | 26027 | 2021-05-14 10:02:28 |
| pes-20210511_pre.xml | 22602 | 2021-05-14 10:02:28 |
| R1.htm | 44680 | 2021-05-14 10:02:28 |
| report.css | 2767 | 2021-05-14 10:02:28 |
| Show.js | 1085 | 2021-05-14 10:02:28 |