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|---|---|---|
 0000009346-18-000090-index-headers.html | 2018-11-07 13:51:29 | |
| 0000009346-18-000090-index.html | 2018-11-07 13:51:29 | |
| 0000009346-18-000090.txt | 2018-11-07 13:51:29 | |
 0000009346-18-000090-xbrl.zip | 157954 | 2018-11-07 13:51:29 |
| exhibit31_1.htm | 12461 | 2018-11-07 13:51:29 |
| exhibit31_2.htm | 12412 | 2018-11-07 13:51:29 |
| exhibit32.htm | 6199 | 2018-11-07 13:51:29 |
| FilingSummary.xml | 25059 | 2018-11-07 13:51:29 |
| Financial_Report.xlsx | 63641 | 2018-11-07 13:51:29 |
| form10q.htm | 674952 | 2018-11-07 13:51:29 |
 image0.jpg | 8225 | 2018-11-07 13:51:29 |
| ptvc-20180930.xml | 1334913 | 2018-11-07 13:51:29 |
| ptvc-20180930.xsd | 41632 | 2018-11-07 13:51:29 |
| ptvc-20180930_cal.xml | 93755 | 2018-11-07 13:51:29 |
| ptvc-20180930_def.xml | 234173 | 2018-11-07 13:51:29 |
| ptvc-20180930_lab.xml | 668767 | 2018-11-07 13:51:29 |
| ptvc-20180930_pre.xml | 347438 | 2018-11-07 13:51:29 |
| R1.htm | 30005 | 2018-11-07 13:51:29 |
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| R8.htm | 161969 | 2018-11-07 13:51:29 |
| R9.htm | 13158 | 2018-11-07 13:51:29 |
| report.css | 2767 | 2018-11-07 13:51:29 |
| Show.js | 1085 | 2018-11-07 13:51:29 |