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| 0000914122-18-000062-index.html | 2018-09-11 09:05:32 | |
| 0000914122-18-000062.txt | 2018-09-11 09:05:32 | |
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| exhibit10bppih2018restri.htm | 41741 | 2018-09-11 09:05:32 |
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| FilingSummary.xml | 22665 | 2018-09-11 09:05:32 |
| Financial_Report.xlsx | 48767 | 2018-09-11 09:05:32 |
| permapipe9thamdt8118.htm | 2115 | 2018-09-11 09:05:32 |
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| ppih-20180731.xml | 507416 | 2018-09-11 09:05:32 |
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| ppih2018q210q.htm | 521479 | 2018-09-11 09:05:32 |
| ppih311q22018.htm | 12689 | 2018-09-11 09:05:32 |
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| ppih32q22018.htm | 5862 | 2018-09-11 09:05:32 |
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| report.css | 2767 | 2018-09-11 09:05:32 |
| Show.js | 1410 | 2018-09-11 09:05:32 |