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| 0000928816-20-001507-index.html | 2020-12-29 11:16:25 | |
| 0000928816-20-001507.txt | 2020-12-29 11:16:25 | |
 0000928816-20-001507-xbrl.zip | 666368 | 2020-12-29 11:16:25 |
| a2_put2012021pro.htm | 2232925 | 2020-12-29 11:16:25 |
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 BarChart1.png | 15116 | 2020-12-29 11:16:25 |
| b_exh24.htm | 54090 | 2020-12-29 11:16:25 |
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| d_ghcex99j.htm | 1731 | 2020-12-29 11:16:25 |
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| phstx-20201230.xsd | 7078 | 2020-12-29 11:16:25 |
| phstx-20201230_cal.xml | 7798 | 2020-12-29 11:16:25 |
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 put2012021pro_01.jpg | 304329 | 2020-12-29 11:16:25 |
 put2012021pro_02.jpg | 50232 | 2020-12-29 11:16:25 |
| R1.htm | 164600 | 2020-12-29 11:16:25 |
| R7.htm | 241649 | 2020-12-29 11:16:25 |
| report.css | 2767 | 2020-12-29 11:16:25 |
| Show.js | 1085 | 2020-12-29 11:16:25 |