Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001628280-23-026175-index.html | 2023-07-31 08:11:02 | |
| 0001628280-23-026175.txt | 2023-07-31 08:11:02 | |
 0001628280-23-026175-xbrl.zip | 11212 | 2023-07-31 08:11:02 |
| FilingSummary.xml | 1639 | 2023-07-31 08:11:02 |
| Financial_Report.xlsx | 5572 | 2023-07-31 08:11:02 |
| MetaLinks.json | 14891 | 2023-07-31 08:11:02 |
| opc-20230731.htm | 27208 | 2023-07-31 08:11:02 |
| opc-20230731.xsd | 1886 | 2023-07-31 08:11:02 |
| opc-20230731_htm.xml | 2446 | 2023-07-31 08:11:02 |
| opc-20230731_lab.xml | 21065 | 2023-07-31 08:11:02 |
| opc-20230731_pre.xml | 10963 | 2023-07-31 08:11:02 |
| pressreleasedated073123.htm | 4574 | 2023-07-31 08:11:02 |
 pressreleasedated073123001.jpg | 156344 | 2023-07-31 08:11:02 |
 pressreleasedated073123002.jpg | 155913 | 2023-07-31 08:11:02 |
| R1.htm | 33353 | 2023-07-31 08:11:02 |
| report.css | 2767 | 2023-07-31 08:11:02 |
| Show.js | 1085 | 2023-07-31 08:11:02 |