Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-288538-index-headers.html | 2020-11-09 08:14:01 | |
| 0001193125-20-288538-index.html | 2020-11-09 08:14:01 | |
| 0001193125-20-288538.txt | 2020-11-09 08:14:01 | |
 0001193125-20-288538-xbrl.zip | 18412 | 2020-11-09 08:14:01 |
| d767797d8k.htm | 24079 | 2020-11-09 08:14:01 |
| d767797d8k_htm.xml | 3222 | 2020-11-09 08:14:01 |
| d767797dex991.htm | 116656 | 2020-11-09 08:14:01 |
| FilingSummary.xml | 1735 | 2020-11-09 08:14:01 |
| Financial_Report.xlsx | 5458 | 2020-11-09 08:14:01 |
 g767797img01.jpg | 5945 | 2020-11-09 08:14:01 |
| MetaLinks.json | 18434 | 2020-11-09 08:14:01 |
| pgen-20201109.xsd | 3093 | 2020-11-09 08:14:01 |
| pgen-20201109_lab.xml | 17373 | 2020-11-09 08:14:01 |
| pgen-20201109_pre.xml | 10968 | 2020-11-09 08:14:01 |
| R1.htm | 38615 | 2020-11-09 08:14:01 |
| report.css | 2767 | 2020-11-09 08:14:01 |
| Show.js | 1085 | 2020-11-09 08:14:01 |