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| 0000928816-16-003691-index.html | 2016-10-20 09:04:36 | |
| 0000928816-16-003691.txt | 2016-10-20 09:04:36 | |
 0000928816-16-003691-xbrl.zip | 37979 | 2016-10-20 09:04:36 |
| a_teifcvr.htm | 61535 | 2016-10-20 09:04:36 |
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| ptaex-20161003.xml | 283435 | 2016-10-20 09:04:36 |
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| ptaex-20161003_def.xml | 154208 | 2016-10-20 09:04:36 |
| ptaex-20161003_lab.xml | 160978 | 2016-10-20 09:04:36 |
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| R1.htm | 114055 | 2016-10-20 09:04:36 |
| R15.htm | 691965 | 2016-10-20 09:04:36 |
| R2.htm | 108851 | 2016-10-20 09:04:36 |
| R3.htm | 108807 | 2016-10-20 09:04:36 |
| R4.htm | 108817 | 2016-10-20 09:04:36 |
| R5.htm | 108294 | 2016-10-20 09:04:36 |
| R6.htm | 108241 | 2016-10-20 09:04:36 |
| R7.htm | 108842 | 2016-10-20 09:04:36 |
| R8.htm | 115687 | 2016-10-20 09:04:36 |
| report.css | 2767 | 2016-10-20 09:04:36 |
| Show.js | 1410 | 2016-10-20 09:04:36 |