Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000729580-17-000028-index-headers.html | 2017-08-04 13:25:37 | |
| 0000729580-17-000028-index.html | 2017-08-04 13:25:37 | |
| 0000729580-17-000028.txt | 2017-08-04 13:25:37 | |
 0000729580-17-000028-xbrl.zip | 110068 | 2017-08-04 13:25:37 |
| bel10-q.htm | 824007 | 2017-08-04 13:25:37 |
| belfb-20170630.xml | 789747 | 2017-08-04 13:25:37 |
| belfb-20170630.xsd | 31303 | 2017-08-04 13:25:37 |
| belfb-20170630_cal.xml | 54731 | 2017-08-04 13:25:37 |
| belfb-20170630_def.xml | 164233 | 2017-08-04 13:25:37 |
| belfb-20170630_lab.xml | 434617 | 2017-08-04 13:25:37 |
| belfb-20170630_pre.xml | 256995 | 2017-08-04 13:25:37 |
| ex31-1.htm | 11340 | 2017-08-04 13:25:37 |
| ex31-2.htm | 11548 | 2017-08-04 13:25:37 |
| ex32-1.htm | 3535 | 2017-08-04 13:25:37 |
| ex32-2.htm | 3991 | 2017-08-04 13:25:37 |
| FilingSummary.xml | 24863 | 2017-08-04 13:25:37 |
| Financial_Report.xlsx | 49254 | 2017-08-04 13:25:37 |
| R1.htm | 29537 | 2017-08-04 13:25:37 |
| R10.htm | 14023 | 2017-08-04 13:25:37 |
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| R2.htm | 84967 | 2017-08-04 13:25:37 |
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| R27.htm | 54250 | 2017-08-04 13:25:37 |
| R28.htm | 56506 | 2017-08-04 13:25:37 |
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| R30.htm | 26332 | 2017-08-04 13:25:37 |
| R31.htm | 29585 | 2017-08-04 13:25:37 |
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| R8.htm | 22681 | 2017-08-04 13:25:37 |
| R9.htm | 75962 | 2017-08-04 13:25:37 |
| report.css | 2767 | 2017-08-04 13:25:37 |
| Show.js | 1410 | 2017-08-04 13:25:37 |