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| 0001085869-23-000081-index.html | 2023-05-02 09:19:22 | |
| 0001085869-23-000081.txt | 2023-05-02 09:19:22 | |
 0001085869-23-000081-xbrl.zip | 29188 | 2023-05-02 09:19:22 |
| FilingSummary.xml | 1767 | 2023-05-02 09:19:22 |
| Financial_Report.xlsx | 5727 | 2023-05-02 09:19:22 |
| MetaLinks.json | 18136 | 2023-05-02 09:19:22 |
| prfpressrelease_q12023.htm | 214735 | 2023-05-02 09:19:22 |
| prft-20230502.htm | 35922 | 2023-05-02 09:19:22 |
| prft-20230502.xsd | 1968 | 2023-05-02 09:19:22 |
| prft-20230502_htm.xml | 11015 | 2023-05-02 09:19:22 |
| prft-20230502_lab.xml | 25154 | 2023-05-02 09:19:22 |
| prft-20230502_pre.xml | 13311 | 2023-05-02 09:19:22 |
| q12023earningsdeckfinal.htm | 8978 | 2023-05-02 09:19:22 |
 q12023earningsdeckfinal001.jpg | 50186 | 2023-05-02 09:19:22 |
 q12023earningsdeckfinal002.jpg | 144007 | 2023-05-02 09:19:22 |
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 q12023earningsdeckfinal005.jpg | 110921 | 2023-05-02 09:19:22 |
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| R1.htm | 39640 | 2023-05-02 09:19:22 |
| report.css | 2767 | 2023-05-02 09:19:22 |
| Show.js | 1085 | 2023-05-02 09:19:22 |