Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001493152-20-004463-index-headers.html | 2020-03-20 17:16:19 | |
| 0001493152-20-004463-index.html | 2020-03-20 17:16:19 | |
| 0001493152-20-004463.txt | 2020-03-20 17:16:19 | |
 0001493152-20-004463-xbrl.zip | 233788 | 2020-03-20 17:16:19 |
| ex10-1.htm | 87753 | 2020-03-20 17:16:19 |
| ex10-2.htm | 7556 | 2020-03-20 17:16:19 |
| ex21-1.htm | 13763 | 2020-03-20 17:16:19 |
| ex23-1.htm | 3562 | 2020-03-20 17:16:19 |
| ex31-1.htm | 11033 | 2020-03-20 17:16:19 |
| ex31-2.htm | 18836 | 2020-03-20 17:16:19 |
| ex32-1.htm | 7121 | 2020-03-20 17:16:19 |
| ex32-2.htm | 6639 | 2020-03-20 17:16:19 |
| ex4-10.htm | 35111 | 2020-03-20 17:16:19 |
| ex4-17.htm | 23790 | 2020-03-20 17:16:19 |
| ex4-8.htm | 31631 | 2020-03-20 17:16:19 |
| ex4-9.htm | 16909 | 2020-03-20 17:16:19 |
 ex4-9_001.jpg | 188428 | 2020-03-20 17:16:19 |
 ex4-9_002.jpg | 155715 | 2020-03-20 17:16:19 |
 ex4-9_003.jpg | 185549 | 2020-03-20 17:16:19 |
 ex4-9_004.jpg | 30999 | 2020-03-20 17:16:19 |
 ex4-9_005.jpg | 51843 | 2020-03-20 17:16:19 |
 ex4-9_006.jpg | 58087 | 2020-03-20 17:16:19 |
 ex4-9_007.jpg | 107681 | 2020-03-20 17:16:19 |
 ex4-9_008.jpg | 98207 | 2020-03-20 17:16:19 |
 ex4-9_009.jpg | 93865 | 2020-03-20 17:16:19 |
 ex4-9_010.jpg | 101563 | 2020-03-20 17:16:19 |
 ex4-9_011.jpg | 130322 | 2020-03-20 17:16:19 |
 ex4-9_012.jpg | 52358 | 2020-03-20 17:16:19 |
| FilingSummary.xml | 57010 | 2020-03-20 17:16:19 |
| Financial_Report.xlsx | 138337 | 2020-03-20 17:16:19 |
| form10-k.htm | 1989074 | 2020-03-20 17:16:19 |
| pesi-20191231.xml | 1405656 | 2020-03-20 17:16:19 |
| pesi-20191231.xsd | 99741 | 2020-03-20 17:16:19 |
| pesi-20191231_cal.xml | 121061 | 2020-03-20 17:16:19 |
| pesi-20191231_def.xml | 327588 | 2020-03-20 17:16:19 |
| pesi-20191231_lab.xml | 682777 | 2020-03-20 17:16:19 |
| pesi-20191231_pre.xml | 512423 | 2020-03-20 17:16:19 |
| R1.htm | 35381 | 2020-03-20 17:16:19 |
| R10.htm | 17352 | 2020-03-20 17:16:19 |
| R11.htm | 64614 | 2020-03-20 17:16:19 |
| R12.htm | 33195 | 2020-03-20 17:16:19 |
| R13.htm | 24786 | 2020-03-20 17:16:19 |
| R14.htm | 28916 | 2020-03-20 17:16:19 |
| R15.htm | 55653 | 2020-03-20 17:16:19 |
| R16.htm | 16524 | 2020-03-20 17:16:19 |
| R17.htm | 8941 | 2020-03-20 17:16:19 |
| R18.htm | 26692 | 2020-03-20 17:16:19 |
| R19.htm | 32318 | 2020-03-20 17:16:19 |
| R2.htm | 137013 | 2020-03-20 17:16:19 |
| R20.htm | 10020 | 2020-03-20 17:16:19 |
| R21.htm | 14296 | 2020-03-20 17:16:19 |
| R22.htm | 34013 | 2020-03-20 17:16:19 |
| R23.htm | 9433 | 2020-03-20 17:16:19 |
| R24.htm | 5539 | 2020-03-20 17:16:19 |
| R25.htm | 12423 | 2020-03-20 17:16:19 |
| R26.htm | 59370 | 2020-03-20 17:16:19 |
| R27.htm | 9879 | 2020-03-20 17:16:19 |
| R28.htm | 117723 | 2020-03-20 17:16:19 |
| R29.htm | 14412 | 2020-03-20 17:16:19 |
| R3.htm | 23757 | 2020-03-20 17:16:19 |
| R30.htm | 32936 | 2020-03-20 17:16:19 |
| R31.htm | 41118 | 2020-03-20 17:16:19 |
| R32.htm | 29868 | 2020-03-20 17:16:19 |
| R33.htm | 43352 | 2020-03-20 17:16:19 |
| R34.htm | 16588 | 2020-03-20 17:16:19 |
| R35.htm | 27306 | 2020-03-20 17:16:19 |
| R36.htm | 18951 | 2020-03-20 17:16:19 |
| R37.htm | 8525 | 2020-03-20 17:16:19 |
| R38.htm | 14034 | 2020-03-20 17:16:19 |
| R39.htm | 35149 | 2020-03-20 17:16:19 |
| R4.htm | 66292 | 2020-03-20 17:16:19 |
| R40.htm | 72494 | 2020-03-20 17:16:19 |
| R41.htm | 10155 | 2020-03-20 17:16:19 |
| R42.htm | 86150 | 2020-03-20 17:16:19 |
| R43.htm | 9341 | 2020-03-20 17:16:19 |
| R44.htm | 9285 | 2020-03-20 17:16:19 |
| R45.htm | 4577 | 2020-03-20 17:16:19 |
| R46.htm | 28202 | 2020-03-20 17:16:19 |
| R47.htm | 15203 | 2020-03-20 17:16:19 |
| R48.htm | 15123 | 2020-03-20 17:16:19 |
| R49.htm | 11327 | 2020-03-20 17:16:19 |
| R5.htm | 6789 | 2020-03-20 17:16:19 |
| R50.htm | 24751 | 2020-03-20 17:16:19 |
| R51.htm | 24199 | 2020-03-20 17:16:19 |
| R52.htm | 14038 | 2020-03-20 17:16:19 |
| R53.htm | 4849 | 2020-03-20 17:16:19 |
| R54.htm | 10237 | 2020-03-20 17:16:19 |
| R55.htm | 19725 | 2020-03-20 17:16:19 |
| R56.htm | 12926 | 2020-03-20 17:16:19 |
| R57.htm | 179742 | 2020-03-20 17:16:19 |
| R58.htm | 24975 | 2020-03-20 17:16:19 |
| R59.htm | 6998 | 2020-03-20 17:16:19 |
| R6.htm | 22992 | 2020-03-20 17:16:19 |
| R60.htm | 41701 | 2020-03-20 17:16:19 |
| R61.htm | 6638 | 2020-03-20 17:16:19 |
| R62.htm | 18232 | 2020-03-20 17:16:19 |
| R63.htm | 40840 | 2020-03-20 17:16:19 |
| R64.htm | 37502 | 2020-03-20 17:16:19 |
| R65.htm | 35825 | 2020-03-20 17:16:19 |
| R66.htm | 28951 | 2020-03-20 17:16:19 |
| R67.htm | 4723 | 2020-03-20 17:16:19 |
| R68.htm | 16212 | 2020-03-20 17:16:19 |
| R69.htm | 144566 | 2020-03-20 17:16:19 |
| R7.htm | 45440 | 2020-03-20 17:16:19 |
| R70.htm | 18998 | 2020-03-20 17:16:19 |
| R71.htm | 21410 | 2020-03-20 17:16:19 |
| R72.htm | 10233 | 2020-03-20 17:16:19 |
| R73.htm | 4228 | 2020-03-20 17:16:19 |
| R74.htm | 17091 | 2020-03-20 17:16:19 |
| R75.htm | 9477 | 2020-03-20 17:16:19 |
| R76.htm | 11406 | 2020-03-20 17:16:19 |
| R77.htm | 6252 | 2020-03-20 17:16:19 |
| R78.htm | 28283 | 2020-03-20 17:16:19 |
| R79.htm | 10095 | 2020-03-20 17:16:19 |
| R8.htm | 111305 | 2020-03-20 17:16:19 |
| R80.htm | 12826 | 2020-03-20 17:16:19 |
| R81.htm | 24226 | 2020-03-20 17:16:19 |
| R82.htm | 27417 | 2020-03-20 17:16:19 |
| R83.htm | 23598 | 2020-03-20 17:16:19 |
| R84.htm | 13131 | 2020-03-20 17:16:19 |
| R85.htm | 30563 | 2020-03-20 17:16:19 |
| R86.htm | 4101 | 2020-03-20 17:16:19 |
| R87.htm | 76093 | 2020-03-20 17:16:19 |
| R88.htm | 27685 | 2020-03-20 17:16:19 |
| R89.htm | 13010 | 2020-03-20 17:16:19 |
| R9.htm | 6811 | 2020-03-20 17:16:19 |
| R90.htm | 8342 | 2020-03-20 17:16:19 |
| R91.htm | 36798 | 2020-03-20 17:16:19 |
| report.css | 2767 | 2020-03-20 17:16:19 |
| Show.js | 1085 | 2020-03-20 17:16:19 |