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| 0001564590-20-021981-index.html | 2020-05-06 16:31:42 | |
| 0001564590-20-021981.txt | 2020-05-06 16:31:42 | |
 0001564590-20-021981-xbrl.zip | 113857 | 2020-05-06 16:31:42 |
| FilingSummary.xml | 26314 | 2020-05-06 16:31:42 |
| Financial_Report.xlsx | 56378 | 2020-05-06 16:31:42 |
| prnb-10q_20200331.htm | 1950029 | 2020-05-06 16:31:42 |
| prnb-20200331.xml | 1575953 | 2020-05-06 16:31:42 |
| prnb-20200331.xsd | 37783 | 2020-05-06 16:31:42 |
| prnb-20200331_cal.xml | 43339 | 2020-05-06 16:31:42 |
| prnb-20200331_def.xml | 124786 | 2020-05-06 16:31:42 |
| prnb-20200331_lab.xml | 337241 | 2020-05-06 16:31:42 |
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| prnb-ex311_8.htm | 20042 | 2020-05-06 16:31:42 |
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| report.css | 2767 | 2020-05-06 16:31:42 |
| Show.js | 1085 | 2020-05-06 16:31:42 |