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| 0001387131-17-005407-index.html | 2017-11-13 12:37:20 | |
| 0001387131-17-005407.txt | 2017-11-13 12:37:20 | |
 0001387131-17-005407-xbrl.zip | 97876 | 2017-11-13 12:37:20 |
| ex31-1.htm | 18271 | 2017-11-13 12:37:20 |
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| ex32-1.htm | 9183 | 2017-11-13 12:37:20 |
| ex32-2.htm | 9060 | 2017-11-13 12:37:20 |
| FilingSummary.xml | 31619 | 2017-11-13 12:37:20 |
| Financial_Report.xlsx | 57886 | 2017-11-13 12:37:20 |
| ppsi-10q_093017.htm | 1492865 | 2017-11-13 12:37:20 |
| ppsi-20170930.xml | 901764 | 2017-11-13 12:37:20 |
| ppsi-20170930.xsd | 32773 | 2017-11-13 12:37:20 |
| ppsi-20170930_cal.xml | 65565 | 2017-11-13 12:37:20 |
| ppsi-20170930_def.xml | 120458 | 2017-11-13 12:37:20 |
| ppsi-20170930_lab.xml | 277925 | 2017-11-13 12:37:20 |
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| report.css | 2767 | 2017-11-13 12:37:20 |
| Show.js | 1410 | 2017-11-13 12:37:20 |