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|---|---|---|
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| 0000950170-23-004099-index.html | 2023-02-23 16:07:42 | |
| 0000950170-23-004099.txt | 2023-02-23 16:07:42 | |
 0000950170-23-004099-xbrl.zip | 313610 | 2023-02-23 16:07:42 |
| FilingSummary.xml | 36554 | 2023-02-23 16:07:42 |
| Financial_Report.xlsx | 95365 | 2023-02-23 16:07:42 |
| MetaLinks.json | 803093 | 2023-02-23 16:07:42 |
| pstv-20221231.htm | 2871538 | 2023-02-23 16:07:42 |
| pstv-20221231.xsd | 61194 | 2023-02-23 16:07:42 |
| pstv-20221231_cal.xml | 61013 | 2023-02-23 16:07:42 |
| pstv-20221231_def.xml | 185710 | 2023-02-23 16:07:42 |
| pstv-20221231_htm.xml | 1543353 | 2023-02-23 16:07:42 |
| pstv-20221231_lab.xml | 518265 | 2023-02-23 16:07:42 |
| pstv-20221231_pre.xml | 373333 | 2023-02-23 16:07:42 |
| pstv-ex23_1.htm | 6680 | 2023-02-23 16:07:42 |
| pstv-ex31_1.htm | 17036 | 2023-02-23 16:07:42 |
| pstv-ex31_2.htm | 17324 | 2023-02-23 16:07:42 |
| pstv-ex32_1.htm | 20165 | 2023-02-23 16:07:42 |
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| report.css | 2767 | 2023-02-23 16:07:42 |
| Show.js | 1085 | 2023-02-23 16:07:42 |