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| 0000031791-23-000004-index.html | 2023-03-01 14:17:01 | |
| 0000031791-23-000004.txt | 2023-03-01 14:17:01 | |
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| a202210kcert-ex_321.htm | 9660 | 2023-03-01 14:17:01 |
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| a2022exhibit23.htm | 3243 | 2023-03-01 14:17:01 |
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| Financial_Report.xlsx | 226544 | 2023-03-01 14:17:01 |
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| pki-20230101.htm | 4011284 | 2023-03-01 14:17:01 |
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| report.css | 2768 | 2023-03-01 14:17:01 |
| Show.js | 1086 | 2023-03-01 14:17:01 |