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| 0000729580-16-000057-index.html | 2016-11-07 14:11:23 | |
| 0000729580-16-000057.txt | 2016-11-07 14:11:23 | |
 0000729580-16-000057-xbrl.zip | 142776 | 2016-11-07 14:11:23 |
| bel10-q.htm | 1043697 | 2016-11-07 14:11:23 |
| belfb-20160930.xml | 1332142 | 2016-11-07 14:11:23 |
| belfb-20160930.xsd | 36037 | 2016-11-07 14:11:23 |
| belfb-20160930_cal.xml | 60424 | 2016-11-07 14:11:23 |
| belfb-20160930_def.xml | 216758 | 2016-11-07 14:11:23 |
| belfb-20160930_lab.xml | 531391 | 2016-11-07 14:11:23 |
| belfb-20160930_pre.xml | 321937 | 2016-11-07 14:11:23 |
| ex31-1.htm | 11326 | 2016-11-07 14:11:23 |
| ex31-2.htm | 11928 | 2016-11-07 14:11:23 |
| ex32-1.htm | 3501 | 2016-11-07 14:11:23 |
| ex32-2.htm | 3927 | 2016-11-07 14:11:23 |
| FilingSummary.xml | 27227 | 2016-11-07 14:11:23 |
| Financial_Report.xlsx | 61510 | 2016-11-07 14:11:23 |
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| report.css | 2767 | 2016-11-07 14:11:23 |
| Show.js | 1410 | 2016-11-07 14:11:23 |