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| 0000076334-18-000011-index.html | 2018-02-08 09:45:02 | |
| 0000076334-18-000011.txt | 2018-02-08 09:45:02 | |
 0000076334-18-000011-xbrl.zip | 152282 | 2018-02-08 09:45:02 |
| FilingSummary.xml | 33448 | 2018-02-08 09:45:02 |
| Financial_Report.xlsx | 61015 | 2018-02-08 09:45:02 |
| ph-10qxq212312017.htm | 1049378 | 2018-02-08 09:45:02 |
| ph-20171231.xml | 1492896 | 2018-02-08 09:45:02 |
| ph-20171231.xsd | 34727 | 2018-02-08 09:45:02 |
| ph-20171231_cal.xml | 82075 | 2018-02-08 09:45:02 |
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| ph12312017ex12.htm | 92223 | 2018-02-08 09:45:02 |
| ph12312017ex31a.htm | 12262 | 2018-02-08 09:45:02 |
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| report.css | 2767 | 2018-02-08 09:45:02 |
| Show.js | 1410 | 2018-02-08 09:45:02 |