Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000784977-24-000079-index-headers.html | 2024-04-24 16:37:35 | |
| 0000784977-24-000079-index.html | 2024-04-24 16:37:35 | |
| 0000784977-24-000079.txt | 2024-04-24 16:37:35 | |
 0000784977-24-000079-xbrl.zip | 10160 | 2024-04-24 16:37:35 |
| FilingSummary.xml | 1626 | 2024-04-24 16:37:35 |
| Financial_Report.xlsx | 5679 | 2024-04-24 16:37:35 |
| MetaLinks.json | 17148 | 2024-04-24 16:37:35 |
| por-20240419.htm | 46693 | 2024-04-24 16:37:35 |
| por-20240419.xsd | 1922 | 2024-04-24 16:37:35 |
| por-20240419_htm.xml | 2711 | 2024-04-24 16:37:35 |
| por-20240419_lab.xml | 21629 | 2024-04-24 16:37:35 |
| por-20240419_pre.xml | 12523 | 2024-04-24 16:37:35 |
| R1.htm | 38084 | 2024-04-24 16:37:35 |
| report.css | 2766 | 2024-04-24 16:37:35 |
| Show.js | 1084 | 2024-04-24 16:37:35 |