Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001085869-23-000071-index-headers.html | 2023-04-26 10:03:40 | |
| 0001085869-23-000071-index.html | 2023-04-26 10:03:40 | |
| 0001085869-23-000071.txt | 2023-04-26 10:03:40 | |
 0001085869-23-000071-xbrl.zip | 744101 | 2023-04-26 10:03:40 |
| FilingSummary.xml | 2624 | 2023-04-26 10:03:40 |
| Financial_Report.xlsx | 8900 | 2023-04-26 10:03:40 |
| MetaLinks.json | 146762 | 2023-04-26 10:03:40 |
| prft-20230426.htm | 812518 | 2023-04-26 10:03:40 |
| prft-20230426.xsd | 3181 | 2023-04-26 10:03:40 |
| prft-20230426_def.xml | 3948 | 2023-04-26 10:03:40 |
 prft-20230426_g1.jpg | 120215 | 2023-04-26 10:03:40 |
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 prft-20230426_g3.jpg | 124478 | 2023-04-26 10:03:40 |
 prft-20230426_g4.jpg | 158782 | 2023-04-26 10:03:40 |
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 prft-20230426_g6.jpg | 114100 | 2023-04-26 10:03:40 |
 prft-20230426_g7.jpg | 30546 | 2023-04-26 10:03:40 |
 prft-20230426_g8.jpg | 133695 | 2023-04-26 10:03:40 |
| prft-20230426_htm.xml | 110315 | 2023-04-26 10:03:40 |
| prft-20230426_lab.xml | 5418 | 2023-04-26 10:03:40 |
| prft-20230426_pre.xml | 2972 | 2023-04-26 10:03:40 |
| R1.htm | 10839 | 2023-04-26 10:03:40 |
| R2.htm | 116914 | 2023-04-26 10:03:40 |
| report.css | 2767 | 2023-04-26 10:03:40 |
| Show.js | 1085 | 2023-04-26 10:03:40 |