Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001085869-22-000078-index-headers.html | 2022-04-28 10:03:56 | |
| 0001085869-22-000078-index.html | 2022-04-28 10:03:56 | |
| 0001085869-22-000078.txt | 2022-04-28 10:03:56 | |
 0001085869-22-000078-xbrl.zip | 29563 | 2022-04-28 10:03:56 |
| FilingSummary.xml | 1767 | 2022-04-28 10:03:56 |
| Financial_Report.xlsx | 5706 | 2022-04-28 10:03:56 |
| MetaLinks.json | 17604 | 2022-04-28 10:03:56 |
| prfpressrelease_q12022.htm | 196006 | 2022-04-28 10:03:56 |
| prft-20220428.htm | 35922 | 2022-04-28 10:03:56 |
| prft-20220428.xsd | 1968 | 2022-04-28 10:03:56 |
| prft-20220428_htm.xml | 11000 | 2022-04-28 10:03:56 |
| prft-20220428_lab.xml | 25154 | 2022-04-28 10:03:56 |
| prft-20220428_pre.xml | 13311 | 2022-04-28 10:03:56 |
| q12022earningsdeckfinal.htm | 9928 | 2022-04-28 10:03:56 |
 q12022earningsdeckfinal001.jpg | 50483 | 2022-04-28 10:03:56 |
 q12022earningsdeckfinal002.jpg | 144012 | 2022-04-28 10:03:56 |
 q12022earningsdeckfinal003.jpg | 135524 | 2022-04-28 10:03:56 |
 q12022earningsdeckfinal004.jpg | 146576 | 2022-04-28 10:03:56 |
 q12022earningsdeckfinal005.jpg | 89925 | 2022-04-28 10:03:56 |
 q12022earningsdeckfinal006.jpg | 94359 | 2022-04-28 10:03:56 |
| R1.htm | 40275 | 2022-04-28 10:03:56 |
| report.css | 2767 | 2022-04-28 10:03:56 |
| Show.js | 1085 | 2022-04-28 10:03:56 |