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|---|---|---|
 0000014693-26-000010-index-headers.html | 2026-03-04 16:05:54 | |
| 0000014693-26-000010-index.html | 2026-03-04 16:05:54 | |
| 0000014693-26-000010.txt | 2026-03-04 16:05:54 | |
 0000014693-26-000010-xbrl.zip | 222326 | 2026-03-04 16:05:54 |
| bfb-01312026xex311evergreen.htm | 10340 | 2026-03-04 16:05:54 |
| bfb-01312026xex312evergreen.htm | 10261 | 2026-03-04 16:05:54 |
| bfb-01312026xex32evergreen.htm | 9638 | 2026-03-04 16:05:54 |
| bfb-20260131.htm | 1396431 | 2026-03-04 16:05:54 |
| bfb-20260131.xsd | 44993 | 2026-03-04 16:05:54 |
| bfb-20260131_cal.xml | 78179 | 2026-03-04 16:05:54 |
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| FilingSummary.xml | 37779 | 2026-03-04 16:05:54 |
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| R1.htm | 61780 | 2026-03-04 16:05:54 |
| R10.htm | 26049 | 2026-03-04 16:05:54 |
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| report.css | 2767 | 2026-03-04 16:05:54 |
| Show.js | 1085 | 2026-03-04 16:05:54 |