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|---|---|---|
 0000898430-24-001381-index-headers.html | 2024-12-05 13:03:44 | |
| 0000898430-24-001381-index.html | 2024-12-05 13:03:44 | |
| 0000898430-24-001381.txt | 2024-12-05 13:03:44 | |
 0000898430-24-001381-xbrl.zip | 370012 | 2024-12-05 13:03:44 |
| 302_Certification.htm | 33673 | 2024-12-05 13:03:44 |
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 chartimages_3405869.jpg | 23818 | 2024-12-05 13:03:44 |
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| cik0000773757-20240930_pre.xml | 10492 | 2024-12-05 13:03:44 |
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| Financial_Report.xlsx | 8990 | 2024-12-05 13:03:44 |
 images_1836.jpg | 24911 | 2024-12-05 13:03:44 |
 images_1844.jpg | 109128 | 2024-12-05 13:03:44 |
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| R1.htm | 12734 | 2024-12-05 13:03:44 |
| R2.htm | 69636 | 2024-12-05 13:03:44 |
| R3.htm | 41251 | 2024-12-05 13:03:44 |
| report.css | 2767 | 2024-12-05 13:03:44 |
| Show.js | 1085 | 2024-12-05 13:03:44 |