Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-22-022625-index-headers.html | 2022-11-07 16:19:12 | |
| 0000950170-22-022625-index.html | 2022-11-07 16:19:12 | |
| 0000950170-22-022625.txt | 2022-11-07 16:19:12 | |
 0000950170-22-022625-xbrl.zip | 55734 | 2022-11-07 16:19:12 |
| FilingSummary.xml | 1786 | 2022-11-07 16:19:12 |
| Financial_Report.xlsx | 5817 | 2022-11-07 16:19:12 |
 img8661304_0.jpg | 11916 | 2022-11-07 16:19:12 |
| MetaLinks.json | 21513 | 2022-11-07 16:19:12 |
| prdo-20221107.htm | 71705 | 2022-11-07 16:19:12 |
| prdo-20221107.xsd | 2915 | 2022-11-07 16:19:12 |
| prdo-20221107_def.xml | 13081 | 2022-11-07 16:19:12 |
| prdo-20221107_htm.xml | 5801 | 2022-11-07 16:19:12 |
| prdo-20221107_lab.xml | 19716 | 2022-11-07 16:19:12 |
| prdo-20221107_pre.xml | 13160 | 2022-11-07 16:19:12 |
| prdo-ex99_1.htm | 1741608 | 2022-11-07 16:19:12 |
| R1.htm | 41034 | 2022-11-07 16:19:12 |
| report.css | 2767 | 2022-11-07 16:19:12 |
| Show.js | 1085 | 2022-11-07 16:19:12 |