Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001085869-23-000050-index-headers.html | 2023-03-31 12:24:58 | |
| 0001085869-23-000050-index.html | 2023-03-31 12:24:58 | |
| 0001085869-23-000050.txt | 2023-03-31 12:24:58 | |
 0001085869-23-000050-xbrl.zip | 10252 | 2023-03-31 12:24:58 |
| FilingSummary.xml | 1678 | 2023-03-31 12:24:58 |
| Financial_Report.xlsx | 5727 | 2023-03-31 12:24:58 |
| MetaLinks.json | 18134 | 2023-03-31 12:24:58 |
| prft-20230329.htm | 29958 | 2023-03-31 12:24:58 |
| prft-20230329.xsd | 1968 | 2023-03-31 12:24:58 |
| prft-20230329_htm.xml | 4269 | 2023-03-31 12:24:58 |
| prft-20230329_lab.xml | 25154 | 2023-03-31 12:24:58 |
| prft-20230329_pre.xml | 13311 | 2023-03-31 12:24:58 |
| R1.htm | 39632 | 2023-03-31 12:24:58 |
| report.css | 2766 | 2023-03-31 12:24:58 |
| Show.js | 1084 | 2023-03-31 12:24:58 |