Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001085869-21-000140-index-headers.html | 2021-11-05 06:02:46 | |
| 0001085869-21-000140-index.html | 2021-11-05 06:02:46 | |
| 0001085869-21-000140.txt | 2021-11-05 06:02:46 | |
 0001085869-21-000140-xbrl.zip | 16116 | 2021-11-05 06:02:46 |
| FilingSummary.xml | 1715 | 2021-11-05 06:02:46 |
| Financial_Report.xlsx | 5706 | 2021-11-05 06:02:46 |
| MetaLinks.json | 17604 | 2021-11-05 06:02:46 |
| prfpressrelease_pricingdeb.htm | 21685 | 2021-11-05 06:02:46 |
| prft-20211104.htm | 33217 | 2021-11-05 06:02:46 |
| prft-20211104.xsd | 1968 | 2021-11-05 06:02:46 |
| prft-20211104_htm.xml | 11012 | 2021-11-05 06:02:46 |
| prft-20211104_lab.xml | 25154 | 2021-11-05 06:02:46 |
| prft-20211104_pre.xml | 13311 | 2021-11-05 06:02:46 |
| R1.htm | 40137 | 2021-11-05 06:02:46 |
| report.css | 2767 | 2021-11-05 06:02:46 |
| Show.js | 1084 | 2021-11-05 06:02:46 |