Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-22-000770-index-headers.html | 2022-01-12 09:34:00 | |
| 0001628280-22-000770-index.html | 2022-01-12 09:34:00 | |
| 0001628280-22-000770.txt | 2022-01-12 09:34:00 | |
 0001628280-22-000770-xbrl.zip | 12021 | 2022-01-12 09:34:00 |
| FilingSummary.xml | 1629 | 2022-01-12 09:34:00 |
| Financial_Report.xlsx | 5551 | 2022-01-12 09:34:00 |
| MetaLinks.json | 14580 | 2022-01-12 09:34:00 |
| opc-20220108.htm | 34159 | 2022-01-12 09:34:00 |
| opc-20220108.xsd | 1884 | 2022-01-12 09:34:00 |
| opc-20220108_htm.xml | 10189 | 2022-01-12 09:34:00 |
| opc-20220108_lab.xml | 21063 | 2022-01-12 09:34:00 |
| opc-20220108_pre.xml | 10961 | 2022-01-12 09:34:00 |
| pressreleasedated011222.htm | 3305 | 2022-01-12 09:34:00 |
 pressreleasedated011222001.jpg | 144765 | 2022-01-12 09:34:00 |
 pressreleasedated011222002.jpg | 86930 | 2022-01-12 09:34:00 |
| R1.htm | 33774 | 2022-01-12 09:34:00 |
| report.css | 2767 | 2022-01-12 09:34:00 |
| Show.js | 1085 | 2022-01-12 09:34:00 |