Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000784977-23-000079-index-headers.html | 2023-05-30 18:12:46 | |
| 0000784977-23-000079-index.html | 2023-05-30 18:12:46 | |
| 0000784977-23-000079.txt | 2023-05-30 18:12:46 | |
 0000784977-23-000079-xbrl.zip | 12191 | 2023-05-30 18:12:46 |
| FilingSummary.xml | 1606 | 2023-05-30 18:12:46 |
| Financial_Report.xlsx | 5679 | 2023-05-30 18:12:46 |
| MetaLinks.json | 17246 | 2023-05-30 18:12:46 |
| por-20230530.htm | 37798 | 2023-05-30 18:12:46 |
| por-20230530.xsd | 1920 | 2023-05-30 18:12:46 |
| por-20230530_htm.xml | 10710 | 2023-05-30 18:12:46 |
| por-20230530_lab.xml | 23832 | 2023-05-30 18:12:46 |
| por-20230530_pre.xml | 12521 | 2023-05-30 18:12:46 |
| R1.htm | 38079 | 2023-05-30 18:12:46 |
| report.css | 2766 | 2023-05-30 18:12:46 |
| Show.js | 1084 | 2023-05-30 18:12:46 |