Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000784977-24-000054-index-headers.html | 2024-02-29 16:24:02 | |
| 0000784977-24-000054-index.html | 2024-02-29 16:24:02 | |
| 0000784977-24-000054.txt | 2024-02-29 16:24:02 | |
 0000784977-24-000054-xbrl.zip | 10461 | 2024-02-29 16:24:02 |
| FilingSummary.xml | 1625 | 2024-02-29 16:24:02 |
| Financial_Report.xlsx | 5679 | 2024-02-29 16:24:02 |
| MetaLinks.json | 17148 | 2024-02-29 16:24:02 |
| por-20240229.htm | 27920 | 2024-02-29 16:24:02 |
| por-20240229.xsd | 1922 | 2024-02-29 16:24:02 |
| por-20240229_htm.xml | 2711 | 2024-02-29 16:24:02 |
| por-20240229_lab.xml | 23834 | 2024-02-29 16:24:02 |
| por-20240229_pre.xml | 12523 | 2024-02-29 16:24:02 |
| R1.htm | 38083 | 2024-02-29 16:24:02 |
| report.css | 2766 | 2024-02-29 16:24:02 |
| Show.js | 1084 | 2024-02-29 16:24:02 |