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| 0000314489-23-000056.txt | 2023-05-04 16:03:21 | |
 0000314489-23-000056-xbrl.zip | 559232 | 2023-05-04 16:03:21 |
| buse-20230331.htm | 4605805 | 2023-05-04 16:03:21 |
| buse-20230331.xsd | 90316 | 2023-05-04 16:03:21 |
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| buse-20230331_lab.xml | 1135391 | 2023-05-04 16:03:21 |
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| buse_20230331xex321.htm | 3876 | 2023-05-04 16:03:21 |
| buse_20230331xex322.htm | 3856 | 2023-05-04 16:03:21 |
| FilingSummary.xml | 62102 | 2023-05-04 16:03:21 |
| Financial_Report.xlsx | 178114 | 2023-05-04 16:03:21 |
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| report.css | 2768 | 2023-05-04 16:03:21 |
| Show.js | 1086 | 2023-05-04 16:03:21 |