Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-22-001667-index-headers.html | 2022-02-02 14:58:19 | |
| 0001628280-22-001667-index.html | 2022-02-02 14:58:19 | |
| 0001628280-22-001667.txt | 2022-02-02 14:58:19 | |
 0001628280-22-001667-xbrl.zip | 12728 | 2022-02-02 14:58:19 |
| FilingSummary.xml | 1641 | 2022-02-02 14:58:19 |
| Financial_Report.xlsx | 5549 | 2022-02-02 14:58:19 |
| MetaLinks.json | 14580 | 2022-02-02 14:58:19 |
| opc-20220202.htm | 34277 | 2022-02-02 14:58:19 |
| opc-20220202.xsd | 1884 | 2022-02-02 14:58:19 |
| opc-20220202_htm.xml | 10189 | 2022-02-02 14:58:19 |
| opc-20220202_lab.xml | 21063 | 2022-02-02 14:58:19 |
| opc-20220202_pre.xml | 10961 | 2022-02-02 14:58:19 |
| pressreleasedated02222.htm | 4528 | 2022-02-02 14:58:19 |
 pressreleasedated02222001.jpg | 149913 | 2022-02-02 14:58:19 |
 pressreleasedated02222002.jpg | 140384 | 2022-02-02 14:58:19 |
 pressreleasedated02222003.jpg | 83003 | 2022-02-02 14:58:19 |
| R1.htm | 33776 | 2022-02-02 14:58:19 |
| report.css | 2767 | 2022-02-02 14:58:19 |
| Show.js | 1085 | 2022-02-02 14:58:19 |