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| 0001085869-23-000128.txt | 2023-07-27 14:55:40 | |
 0001085869-23-000128-xbrl.zip | 288735 | 2023-07-27 14:55:40 |
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| prft-20230630.htm | 1125093 | 2023-07-27 14:55:40 |
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| report.css | 2767 | 2023-07-27 14:55:40 |
| Show.js | 1085 | 2023-07-27 14:55:40 |