Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-22-029136-index-headers.html | 2022-08-11 16:27:18 | |
| 0001564590-22-029136-index.html | 2022-08-11 16:27:18 | |
| 0001564590-22-029136.txt | 2022-08-11 16:27:18 | |
 0001564590-22-029136-xbrl.zip | 19195 | 2022-08-11 16:27:18 |
| FilingSummary.xml | 1743 | 2022-08-11 16:27:18 |
| Financial_Report.xlsx | 5753 | 2022-08-11 16:27:18 |
 g3pwawj2dxak000001.jpg | 752068 | 2022-08-11 16:27:18 |
| MetaLinks.json | 19747 | 2022-08-11 16:27:18 |
| pstx-20220811.xsd | 5569 | 2022-08-11 16:27:18 |
| pstx-20220811_lab.xml | 20063 | 2022-08-11 16:27:18 |
| pstx-20220811_pre.xml | 11919 | 2022-08-11 16:27:18 |
| pstx-8k_20220811.htm | 41519 | 2022-08-11 16:27:18 |
| pstx-8k_20220811_htm.xml | 3693 | 2022-08-11 16:27:18 |
| pstx-ex991_6.htm | 182127 | 2022-08-11 16:27:18 |
| R1.htm | 41882 | 2022-08-11 16:27:18 |
| report.css | 2767 | 2022-08-11 16:27:18 |
| Show.js | 1085 | 2022-08-11 16:27:18 |