Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001387131-21-012001-index-headers.html | 2021-12-13 16:33:01 | |
| 0001387131-21-012001-index.html | 2021-12-13 16:33:01 | |
| 0001387131-21-012001.txt | 2021-12-13 16:33:01 | |
 0001387131-21-012001-xbrl.zip | 14149 | 2021-12-13 16:33:01 |
| ex5-1.htm | 10361 | 2021-12-13 16:33:01 |
 ex5-1_001.jpg | 4516 | 2021-12-13 16:33:01 |
| FilingSummary.xml | 1634 | 2021-12-13 16:33:01 |
| Financial_Report.xlsx | 5690 | 2021-12-13 16:33:01 |
| MetaLinks.json | 38547 | 2021-12-13 16:33:01 |
| ppsi-20211213.xsd | 3064 | 2021-12-13 16:33:01 |
| ppsi-20211213_lab.xml | 34240 | 2021-12-13 16:33:01 |
| ppsi-20211213_pre.xml | 22385 | 2021-12-13 16:33:01 |
| ppsi-8k_121321.htm | 28297 | 2021-12-13 16:33:01 |
| ppsi-8k_121321_htm.xml | 3610 | 2021-12-13 16:33:01 |
| R1.htm | 40119 | 2021-12-13 16:33:01 |
| report.css | 2767 | 2021-12-13 16:33:01 |
| Show.js | 1085 | 2021-12-13 16:33:01 |