Parent Directory| Name | Size | Last Modified |
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| 0001437749-23-018436-index.html | 2023-06-26 15:52:17 | |
| 0001437749-23-018436.txt | 2023-06-26 15:52:17 | |
 0001437749-23-018436-xbrl.zip | 12630 | 2023-06-26 15:52:17 |
| belfb-20230626.xsd | 3849 | 2023-06-26 15:52:17 |
| belfb-20230626_def.xml | 13376 | 2023-06-26 15:52:17 |
| belfb-20230626_lab.xml | 17526 | 2023-06-26 15:52:17 |
| belfb-20230626_pre.xml | 13353 | 2023-06-26 15:52:17 |
| belfb20230626_8k.htm | 39533 | 2023-06-26 15:52:17 |
| belfb20230626_8k_htm.xml | 4232 | 2023-06-26 15:52:17 |
| ex_537986.htm | 9855 | 2023-06-26 15:52:17 |
| FilingSummary.xml | 1778 | 2023-06-26 15:52:17 |
| Financial_Report.xlsx | 5807 | 2023-06-26 15:52:17 |
 image00001.jpg | 9439 | 2023-06-26 15:52:17 |
| MetaLinks.json | 21614 | 2023-06-26 15:52:17 |
| R1.htm | 42315 | 2023-06-26 15:52:17 |
| report.css | 2767 | 2023-06-26 15:52:17 |
| Show.js | 1085 | 2023-06-26 15:52:17 |