Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000076334-21-000064-index-headers.html | 2021-04-26 16:32:30 | |
| 0000076334-21-000064-index.html | 2021-04-26 16:32:30 | |
| 0000076334-21-000064.txt | 2021-04-26 16:32:30 | |
 0000076334-21-000064-xbrl.zip | 30147 | 2021-04-26 16:32:30 |
| FilingSummary.xml | 1707 | 2021-04-26 16:32:30 |
| Financial_Report.xlsx | 5684 | 2021-04-26 16:32:30 |
 image_01a.jpg | 283 | 2021-04-26 16:32:30 |
 image_11a.jpg | 1335 | 2021-04-26 16:32:30 |
| MetaLinks.json | 17777 | 2021-04-26 16:32:30 |
| ph-20210422.htm | 36675 | 2021-04-26 16:32:30 |
| ph-20210422.xsd | 2419 | 2021-04-26 16:32:30 |
| ph-20210422_cal.xml | 712 | 2021-04-26 16:32:30 |
| ph-20210422_def.xml | 1645 | 2021-04-26 16:32:30 |
| ph-20210422_htm.xml | 11382 | 2021-04-26 16:32:30 |
| ph-20210422_lab.xml | 24977 | 2021-04-26 16:32:30 |
| ph-20210422_pre.xml | 13189 | 2021-04-26 16:32:30 |
| phc1ex3aform8k04262021.htm | 119850 | 2021-04-26 16:32:30 |
| R1.htm | 40142 | 2021-04-26 16:32:30 |
| report.css | 2767 | 2021-04-26 16:32:30 |
| Show.js | 1085 | 2021-04-26 16:32:30 |