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|---|---|---|
 0000898432-26-000428-index-headers.html | 2026-06-23 14:45:15 | |
| 0000898432-26-000428-index.html | 2026-06-23 14:45:15 | |
| 0000898432-26-000428.txt | 2026-06-23 14:45:15 | |
 0000898432-26-000428-xbrl.zip | 174669 | 2026-06-23 14:45:15 |
| FilingSummary.xml | 8265 | 2026-06-23 14:45:15 |
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| MetaLinks.json | 189956 | 2026-06-23 14:45:15 |
| nbef-20250831.htm | 586442 | 2026-06-23 14:45:15 |
| nbef-20250831.xsd | 11484 | 2026-06-23 14:45:15 |
| nbef-20250831_def.xml | 13892 | 2026-06-23 14:45:15 |
| nbef-20250831_htm.xml | 174079 | 2026-06-23 14:45:15 |
| nbef-20250831_lab.xml | 28231 | 2026-06-23 14:45:15 |
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| R1.htm | 13994 | 2026-06-23 14:45:15 |
| R10.htm | 165616 | 2026-06-23 14:45:15 |
| R11.htm | 37422 | 2026-06-23 14:45:15 |
| R12.htm | 162169 | 2026-06-23 14:45:15 |
| R2.htm | 9750 | 2026-06-23 14:45:15 |
| R3.htm | 37831 | 2026-06-23 14:45:15 |
| R4.htm | 25580 | 2026-06-23 14:45:15 |
| R5.htm | 167520 | 2026-06-23 14:45:15 |
| R6.htm | 18405 | 2026-06-23 14:45:15 |
| R7.htm | 16460 | 2026-06-23 14:45:15 |
| R8.htm | 11482 | 2026-06-23 14:45:15 |
| R9.htm | 37948 | 2026-06-23 14:45:15 |
| report.css | 2767 | 2026-06-23 14:45:15 |
| Show.js | 1085 | 2026-06-23 14:45:15 |