Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000784977-23-000119-index-headers.html | 2023-08-21 19:40:40 | |
| 0000784977-23-000119-index.html | 2023-08-21 19:40:40 | |
| 0000784977-23-000119.txt | 2023-08-21 19:40:40 | |
 0000784977-23-000119-xbrl.zip | 20796 | 2023-08-21 19:40:40 |
| exhibit101.htm | 62044 | 2023-08-21 19:40:40 |
| FilingSummary.xml | 1638 | 2023-08-21 19:40:40 |
| Financial_Report.xlsx | 5680 | 2023-08-21 19:40:40 |
| MetaLinks.json | 17148 | 2023-08-21 19:40:40 |
| por-20230818.htm | 52726 | 2023-08-21 19:40:40 |
| por-20230818.xsd | 1922 | 2023-08-21 19:40:40 |
| por-20230818_htm.xml | 2711 | 2023-08-21 19:40:40 |
| por-20230818_lab.xml | 23834 | 2023-08-21 19:40:40 |
| por-20230818_pre.xml | 12523 | 2023-08-21 19:40:40 |
| R1.htm | 38081 | 2023-08-21 19:40:40 |
| report.css | 2767 | 2023-08-21 19:40:40 |
| Show.js | 1084 | 2023-08-21 19:40:40 |