Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000077159-19-000037-index-headers.html | 2019-08-08 11:46:28 | |
| 0000077159-19-000037-index.html | 2019-08-08 11:46:28 | |
| 0000077159-19-000037.txt | 2019-08-08 11:46:28 | |
 0000077159-19-000037-xbrl.zip | 493634 | 2019-08-08 11:46:28 |
| FilingSummary.xml | 33281 | 2019-08-08 11:46:28 |
| Financial_Report.xlsx | 72177 | 2019-08-08 11:46:28 |
| MetaLinks.json | 539398 | 2019-08-08 11:46:28 |
| pva-20190630.xsd | 51485 | 2019-08-08 11:46:28 |
| pva-20190630xex311.htm | 10528 | 2019-08-08 11:46:28 |
| pva-20190630xex312.htm | 10419 | 2019-08-08 11:46:28 |
| pva-20190630xex321.htm | 6083 | 2019-08-08 11:46:28 |
| pva-20190630xex322.htm | 6138 | 2019-08-08 11:46:28 |
| pva-20190630_cal.xml | 72677 | 2019-08-08 11:46:28 |
| pva-20190630_def.xml | 221205 | 2019-08-08 11:46:28 |
| pva-20190630_lab.xml | 646421 | 2019-08-08 11:46:28 |
| pva-20190630_pre.xml | 366572 | 2019-08-08 11:46:28 |
| pva-2019630x10q.htm | 2114421 | 2019-08-08 11:46:28 |
| pva-2019630x10q_htm.xml | 1441277 | 2019-08-08 11:46:28 |
 pvac2019logo.jpg | 264438 | 2019-08-08 11:46:28 |
| pvac2019mip.htm | 100646 | 2019-08-08 11:46:28 |
| R1.htm | 52199 | 2019-08-08 11:46:28 |
| R10.htm | 34369 | 2019-08-08 11:46:28 |
| R11.htm | 20471 | 2019-08-08 11:46:28 |
| R12.htm | 97991 | 2019-08-08 11:46:28 |
| R13.htm | 23489 | 2019-08-08 11:46:28 |
| R14.htm | 44380 | 2019-08-08 11:46:28 |
| R15.htm | 8265 | 2019-08-08 11:46:28 |
| R16.htm | 53718 | 2019-08-08 11:46:28 |
| R17.htm | 44475 | 2019-08-08 11:46:28 |
| R18.htm | 62559 | 2019-08-08 11:46:28 |
| R19.htm | 10776 | 2019-08-08 11:46:28 |
| R2.htm | 66285 | 2019-08-08 11:46:28 |
| R20.htm | 83020 | 2019-08-08 11:46:28 |
| R21.htm | 16234 | 2019-08-08 11:46:28 |
| R22.htm | 25250 | 2019-08-08 11:46:28 |
| R23.htm | 23810 | 2019-08-08 11:46:28 |
| R24.htm | 22147 | 2019-08-08 11:46:28 |
| R25.htm | 26447 | 2019-08-08 11:46:28 |
| R26.htm | 16624 | 2019-08-08 11:46:28 |
| R27.htm | 100674 | 2019-08-08 11:46:28 |
| R28.htm | 19566 | 2019-08-08 11:46:28 |
| R29.htm | 30262 | 2019-08-08 11:46:28 |
| R3.htm | 17117 | 2019-08-08 11:46:28 |
| R30.htm | 53862 | 2019-08-08 11:46:28 |
| R31.htm | 44266 | 2019-08-08 11:46:28 |
| R32.htm | 56164 | 2019-08-08 11:46:28 |
| R33.htm | 83094 | 2019-08-08 11:46:28 |
| R34.htm | 24983 | 2019-08-08 11:46:28 |
| R35.htm | 24070 | 2019-08-08 11:46:28 |
| R36.htm | 4020 | 2019-08-08 11:46:28 |
| R37.htm | 66467 | 2019-08-08 11:46:28 |
| R38.htm | 15912 | 2019-08-08 11:46:28 |
| R39.htm | 23100 | 2019-08-08 11:46:28 |
| R4.htm | 5570 | 2019-08-08 11:46:28 |
| R40.htm | 67275 | 2019-08-08 11:46:28 |
| R41.htm | 39777 | 2019-08-08 11:46:28 |
| R42.htm | 5173 | 2019-08-08 11:46:28 |
| R43.htm | 26973 | 2019-08-08 11:46:28 |
| R44.htm | 29673 | 2019-08-08 11:46:28 |
| R45.htm | 21714 | 2019-08-08 11:46:28 |
| R46.htm | 74060 | 2019-08-08 11:46:28 |
| R47.htm | 19843 | 2019-08-08 11:46:28 |
| R48.htm | 65982 | 2019-08-08 11:46:28 |
| R49.htm | 55173 | 2019-08-08 11:46:28 |
| R5.htm | 69772 | 2019-08-08 11:46:28 |
| R50.htm | 36245 | 2019-08-08 11:46:28 |
| R51.htm | 26713 | 2019-08-08 11:46:28 |
| R52.htm | 48390 | 2019-08-08 11:46:28 |
| R53.htm | 67717 | 2019-08-08 11:46:28 |
| R54.htm | 16147 | 2019-08-08 11:46:28 |
| R55.htm | 18670 | 2019-08-08 11:46:28 |
| R6.htm | 22752 | 2019-08-08 11:46:28 |
| R7.htm | 73042 | 2019-08-08 11:46:28 |
| R8.htm | 7040 | 2019-08-08 11:46:28 |
| R9.htm | 10679 | 2019-08-08 11:46:28 |
| report.css | 2767 | 2019-08-08 11:46:28 |
| Show.js | 1085 | 2019-08-08 11:46:28 |