Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001085869-20-000082-index-headers.html | 2020-08-10 17:20:24 | |
| 0001085869-20-000082-index.html | 2020-08-10 17:20:24 | |
| 0001085869-20-000082.txt | 2020-08-10 17:20:24 | |
 0001085869-20-000082-xbrl.zip | 17327 | 2020-08-10 17:20:24 |
| FilingSummary.xml | 1719 | 2020-08-10 17:20:24 |
| Financial_Report.xlsx | 5443 | 2020-08-10 17:20:24 |
| MetaLinks.json | 17711 | 2020-08-10 17:20:24 |
| prfpressreleaseinitial.htm | 22679 | 2020-08-10 17:20:24 |
| prft-20200810.htm | 39617 | 2020-08-10 17:20:24 |
| prft-20200810.xsd | 2417 | 2020-08-10 17:20:24 |
| prft-20200810_cal.xml | 706 | 2020-08-10 17:20:24 |
| prft-20200810_def.xml | 1639 | 2020-08-10 17:20:24 |
| prft-20200810_htm.xml | 11140 | 2020-08-10 17:20:24 |
| prft-20200810_lab.xml | 24983 | 2020-08-10 17:20:24 |
| prft-20200810_pre.xml | 13186 | 2020-08-10 17:20:24 |
| R1.htm | 40140 | 2020-08-10 17:20:24 |
| report.css | 2767 | 2020-08-10 17:20:24 |
| Show.js | 1085 | 2020-08-10 17:20:24 |