Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001493152-23-009803-index-headers.html | 2023-03-30 16:55:36 | |
| 0001493152-23-009803-index.html | 2023-03-30 16:55:36 | |
| 0001493152-23-009803.txt | 2023-03-30 16:55:36 | |
 0001493152-23-009803-xbrl.zip | 20655 | 2023-03-30 16:55:36 |
| ex99-1.htm | 106202 | 2023-03-30 16:55:36 |
 ex99-1_001.jpg | 13384 | 2023-03-30 16:55:36 |
| FilingSummary.xml | 1625 | 2023-03-30 16:55:36 |
| Financial_Report.xlsx | 5726 | 2023-03-30 16:55:36 |
| form8-k.htm | 39097 | 2023-03-30 16:55:36 |
| form8-k_htm.xml | 3662 | 2023-03-30 16:55:36 |
| MetaLinks.json | 40064 | 2023-03-30 16:55:36 |
| ppsi-20230330.xsd | 3266 | 2023-03-30 16:55:36 |
| ppsi-20230330_lab.xml | 34240 | 2023-03-30 16:55:36 |
| ppsi-20230330_pre.xml | 22385 | 2023-03-30 16:55:36 |
| R1.htm | 39667 | 2023-03-30 16:55:36 |
| report.css | 2767 | 2023-03-30 16:55:36 |
| Show.js | 1085 | 2023-03-30 16:55:36 |