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| 0001564590-19-013733-index.html | 2019-04-29 16:17:37 | |
| 0001564590-19-013733.txt | 2019-04-29 16:17:37 | |
 0001564590-19-013733-xbrl.zip | 103882 | 2019-04-29 16:17:37 |
| FilingSummary.xml | 34111 | 2019-04-29 16:17:37 |
| Financial_Report.xlsx | 54865 | 2019-04-29 16:17:37 |
| pi-10q_20190331.htm | 1889252 | 2019-04-29 16:17:37 |
| pi-20190331.xml | 1305417 | 2019-04-29 16:17:37 |
| pi-20190331.xsd | 46708 | 2019-04-29 16:17:37 |
| pi-20190331_cal.xml | 77939 | 2019-04-29 16:17:37 |
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| report.css | 2767 | 2019-04-29 16:17:37 |
| Show.js | 1085 | 2019-04-29 16:17:37 |