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| 0000014693-23-000024.txt | 2023-03-08 16:28:00 | |
 0000014693-23-000024-xbrl.zip | 254616 | 2023-03-08 16:28:00 |
| bfb-1312023xex311january.htm | 10564 | 2023-03-08 16:28:00 |
| bfb-1312023xex312january.htm | 10480 | 2023-03-08 16:28:00 |
| bfb-1312023xex32january.htm | 9902 | 2023-03-08 16:28:00 |
| bfb-20230131.htm | 1756716 | 2023-03-08 16:28:00 |
| bfb-20230131.xsd | 40284 | 2023-03-08 16:28:00 |
| bfb-20230131_cal.xml | 82639 | 2023-03-08 16:28:00 |
| bfb-20230131_def.xml | 240167 | 2023-03-08 16:28:00 |
| bfb-20230131_htm.xml | 1769806 | 2023-03-08 16:28:00 |
| bfb-20230131_lab.xml | 534988 | 2023-03-08 16:28:00 |
| bfb-20230131_pre.xml | 350350 | 2023-03-08 16:28:00 |
| FilingSummary.xml | 32252 | 2023-03-08 16:28:00 |
| Financial_Report.xlsx | 80743 | 2023-03-08 16:28:00 |
| MetaLinks.json | 658186 | 2023-03-08 16:28:00 |
| R1.htm | 61797 | 2023-03-08 16:28:00 |
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| R9.htm | 4786 | 2023-03-08 16:28:00 |
| report.css | 2767 | 2023-03-08 16:28:00 |
| Show.js | 1085 | 2023-03-08 16:28:00 |