Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001104659-20-121408-index-headers.html | 2020-11-04 17:12:08 | |
| 0001104659-20-121408-index.html | 2020-11-04 17:12:08 | |
| 0001104659-20-121408.txt | 2020-11-04 17:12:08 | |
 0001104659-20-121408-xbrl.zip | 24785 | 2020-11-04 17:12:08 |
| FilingSummary.xml | 1687 | 2020-11-04 17:12:08 |
| Financial_Report.xlsx | 5552 | 2020-11-04 17:12:08 |
| MetaLinks.json | 39062 | 2020-11-04 17:12:08 |
| ptgx-20201104.xsd | 3207 | 2020-11-04 17:12:08 |
| ptgx-20201104_lab.xml | 34591 | 2020-11-04 17:12:08 |
| ptgx-20201104_pre.xml | 22724 | 2020-11-04 17:12:08 |
| R1.htm | 43506 | 2020-11-04 17:12:08 |
| report.css | 2767 | 2020-11-04 17:12:08 |
| Show.js | 1085 | 2020-11-04 17:12:08 |
| tm2035018d1_8k.htm | 37107 | 2020-11-04 17:12:08 |
| tm2035018d1_8k_htm.xml | 3858 | 2020-11-04 17:12:08 |
| tm2035018d1_ex99-1.htm | 68360 | 2020-11-04 17:12:08 |
 tm2035018d1_ex99-1img001.jpg | 14512 | 2020-11-04 17:12:08 |
| tm2035018d1_ex99-2.htm | 18753 | 2020-11-04 17:12:08 |
 tm2035018d1_ex99-2img001.jpg | 4054 | 2020-11-04 17:12:08 |