Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-23-007659-index-headers.html | 2023-03-13 19:54:09 | |
| 0000950170-23-007659-index.html | 2023-03-13 19:54:09 | |
| 0000950170-23-007659.txt | 2023-03-13 19:54:09 | |
 0000950170-23-007659-xbrl.zip | 20964 | 2023-03-13 19:54:09 |
| FilingSummary.xml | 1742 | 2023-03-13 19:54:09 |
| Financial_Report.xlsx | 6081 | 2023-03-13 19:54:09 |
 img90352887_0.jpg | 37682 | 2023-03-13 19:54:09 |
 img90352887_1.jpg | 37682 | 2023-03-13 19:54:09 |
| MetaLinks.json | 19163 | 2023-03-13 19:54:09 |
| prdo-20230307.htm | 67818 | 2023-03-13 19:54:09 |
| prdo-20230307.xsd | 2475 | 2023-03-13 19:54:09 |
| prdo-20230307_htm.xml | 5771 | 2023-03-13 19:54:09 |
| prdo-20230307_lab.xml | 14546 | 2023-03-13 19:54:09 |
| prdo-20230307_pre.xml | 10669 | 2023-03-13 19:54:09 |
| prdo-ex10_1.htm | 106539 | 2023-03-13 19:54:09 |
| R1.htm | 43408 | 2023-03-13 19:54:09 |
| report.css | 2767 | 2023-03-13 19:54:09 |
| Show.js | 1085 | 2023-03-13 19:54:09 |