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| 0000866368-20-000005-index.html | 2020-02-19 08:45:22 | |
| 0000866368-20-000005.txt | 2020-02-19 08:45:22 | |
 0000866368-20-000005-xbrl.zip | 506992 | 2020-02-19 08:45:22 |
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| psb-20191231xex32_1.htm | 13837 | 2020-02-19 08:45:22 |
| psb-20191231xex4_5.htm | 102293 | 2020-02-19 08:45:22 |
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| report.css | 2767 | 2020-02-19 08:45:22 |
| Show.js | 1085 | 2020-02-19 08:45:22 |