Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001085869-23-000028-index-headers.html | 2023-02-28 09:30:20 | |
| 0001085869-23-000028-index.html | 2023-02-28 09:30:20 | |
| 0001085869-23-000028.txt | 2023-02-28 09:30:20 | |
 0001085869-23-000028-xbrl.zip | 32277 | 2023-02-28 09:30:20 |
| FilingSummary.xml | 1767 | 2023-02-28 09:30:20 |
| Financial_Report.xlsx | 5727 | 2023-02-28 09:30:20 |
| MetaLinks.json | 18136 | 2023-02-28 09:30:20 |
| prfpressrelease_q42022.htm | 273166 | 2023-02-28 09:30:20 |
| prft-20230228.htm | 35984 | 2023-02-28 09:30:20 |
| prft-20230228.xsd | 1968 | 2023-02-28 09:30:20 |
| prft-20230228_htm.xml | 11015 | 2023-02-28 09:30:20 |
| prft-20230228_lab.xml | 25154 | 2023-02-28 09:30:20 |
| prft-20230228_pre.xml | 13311 | 2023-02-28 09:30:20 |
| q42022earningsdeckfinal.htm | 9747 | 2023-02-28 09:30:20 |
 q42022earningsdeckfinal001.jpg | 50520 | 2023-02-28 09:30:20 |
 q42022earningsdeckfinal002.jpg | 144016 | 2023-02-28 09:30:20 |
 q42022earningsdeckfinal003.jpg | 130242 | 2023-02-28 09:30:20 |
 q42022earningsdeckfinal004.jpg | 149993 | 2023-02-28 09:30:20 |
 q42022earningsdeckfinal005.jpg | 90601 | 2023-02-28 09:30:20 |
 q42022earningsdeckfinal006.jpg | 94216 | 2023-02-28 09:30:20 |
| R1.htm | 39641 | 2023-02-28 09:30:20 |
| report.css | 2767 | 2023-02-28 09:30:20 |
| Show.js | 1085 | 2023-02-28 09:30:20 |