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|---|---|---|
 0000077159-22-000006-index-headers.html | 2022-03-08 17:00:10 | |
| 0000077159-22-000006-index.html | 2022-03-08 17:00:10 | |
| 0000077159-22-000006.txt | 2022-03-08 17:00:10 | |
 0000077159-22-000006-xbrl.zip | 713090 | 2022-03-08 17:00:10 |
| FilingSummary.xml | 46109 | 2022-03-08 17:00:10 |
| Financial_Report.xlsx | 140120 | 2022-03-08 17:00:10 |
| MetaLinks.json | 952171 | 2022-03-08 17:00:10 |
| pva-20211231.htm | 3220924 | 2022-03-08 17:00:10 |
| pva-20211231.xsd | 86571 | 2022-03-08 17:00:10 |
| pva-20211231_cal.xml | 124766 | 2022-03-08 17:00:10 |
| pva-20211231_def.xml | 504603 | 2022-03-08 17:00:10 |
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| pva-20211231_htm.xml | 2157045 | 2022-03-08 17:00:10 |
| pva-20211231_lab.xml | 988010 | 2022-03-08 17:00:10 |
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| R1.htm | 67458 | 2022-03-08 17:00:10 |
| R10.htm | 6798 | 2022-03-08 17:00:10 |
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| R8.htm | 75833 | 2022-03-08 17:00:10 |
| R9.htm | 19425 | 2022-03-08 17:00:10 |
| report.css | 2767 | 2022-03-08 17:00:10 |
| rocc-20211231xex211.htm | 18168 | 2022-03-08 17:00:10 |
| rocc-20211231xex231.htm | 2537 | 2022-03-08 17:00:10 |
| rocc-20211231xex232.htm | 6860 | 2022-03-08 17:00:10 |
| rocc-20211231xex311.htm | 9565 | 2022-03-08 17:00:10 |
| rocc-20211231xex312.htm | 9566 | 2022-03-08 17:00:10 |
| rocc-20211231xex321.htm | 5548 | 2022-03-08 17:00:10 |
| rocc-20211231xex322.htm | 5384 | 2022-03-08 17:00:10 |
| rocc-20211231xex43.htm | 31664 | 2022-03-08 17:00:10 |
| rocc-20211231xex991.htm | 65208 | 2022-03-08 17:00:10 |
| Show.js | 1085 | 2022-03-08 17:00:10 |