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| 0000950170-24-025851-index.html | 2024-03-05 16:01:48 | |
| 0000950170-24-025851.txt | 2024-03-05 16:01:48 | |
 0000950170-24-025851-xbrl.zip | 362464 | 2024-03-05 16:01:48 |
| FilingSummary.xml | 37139 | 2024-03-05 16:01:48 |
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| pstv-20231231.htm | 2709054 | 2024-03-05 16:01:48 |
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| report.css | 2767 | 2024-03-05 16:01:48 |
| Show.js | 1085 | 2024-03-05 16:01:48 |