Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000784977-25-000062-index-headers.html | 2025-03-26 17:33:13 | |
| 0000784977-25-000062-index.html | 2025-03-26 17:33:13 | |
| 0000784977-25-000062.txt | 2025-03-26 17:33:13 | |
 0000784977-25-000062-xbrl.zip | 35409 | 2025-03-26 17:33:13 |
| ex41.htm | 384990 | 2025-03-26 17:33:13 |
| FilingSummary.xml | 1623 | 2025-03-26 17:33:13 |
| Financial_Report.xlsx | 5699 | 2025-03-26 17:33:13 |
| MetaLinks.json | 17147 | 2025-03-26 17:33:13 |
| por-20250325.htm | 31469 | 2025-03-26 17:33:13 |
| por-20250325.xsd | 1803 | 2025-03-26 17:33:13 |
| por-20250325_htm.xml | 2711 | 2025-03-26 17:33:13 |
| por-20250325_lab.xml | 21629 | 2025-03-26 17:33:13 |
| por-20250325_pre.xml | 12523 | 2025-03-26 17:33:13 |
| R1.htm | 38065 | 2025-03-26 17:33:13 |
| report.css | 2767 | 2025-03-26 17:33:13 |
| Show.js | 1084 | 2025-03-26 17:33:13 |