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| 0000077159-18-000015-index.html | 2018-08-08 11:54:42 | |
| 0000077159-18-000015.txt | 2018-08-08 11:54:42 | |
 0000077159-18-000015-xbrl.zip | 202048 | 2018-08-08 11:54:42 |
| FilingSummary.xml | 34530 | 2018-08-08 11:54:42 |
| Financial_Report.xlsx | 80739 | 2018-08-08 11:54:42 |
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| pva-20180630.xml | 1507379 | 2018-08-08 11:54:42 |
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| pva-20180630_lab.xml | 659710 | 2018-08-08 11:54:42 |
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| report.css | 2767 | 2018-08-08 11:54:42 |
| Show.js | 1410 | 2018-08-08 11:54:42 |