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|---|---|---|
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| 0000919086-13-000075-index.html | 2013-08-20 15:14:57 | |
| 0000919086-13-000075.txt | 2013-08-20 15:14:57 | |
 0000919086-13-000075-xbrl.zip | 39222 | 2013-08-20 15:14:57 |
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| FilingSummary.xml | 5475 | 2013-08-20 15:14:57 |
| Financial_Report.xls | 817206 | 2013-08-20 15:14:57 |
| ptf-20120801.xml | 224585 | 2013-08-20 15:14:57 |
| ptf-20120801.xsd | 10325 | 2013-08-20 15:14:57 |
| ptf-20120801_def.xml | 129643 | 2013-08-20 15:14:57 |
| ptf-20120801_lab.xml | 132060 | 2013-08-20 15:14:57 |
| ptf-20120801_pre.xml | 157806 | 2013-08-20 15:14:57 |
| R1.htm | 115240 | 2013-08-20 15:14:57 |
| R1.xml | 269138 | 2013-08-20 15:14:57 |
| R12.htm | 536477 | 2013-08-20 15:14:57 |
| R12.xml | 1323575 | 2013-08-20 15:14:57 |
| R2.htm | 124768 | 2013-08-20 15:14:57 |
| R2.xml | 281791 | 2013-08-20 15:14:57 |
| R3.htm | 120734 | 2013-08-20 15:14:57 |
| R3.xml | 275749 | 2013-08-20 15:14:57 |
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| R7.htm | 244040 | 2013-08-20 15:14:57 |
| R7.xml | 1427002 | 2013-08-20 15:14:57 |
| report.css | 2740 | 2013-08-20 15:14:57 |
| Show.js | 1410 | 2013-08-20 15:14:57 |
| xbrl.htm | 36394 | 2013-08-20 15:14:57 |