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|---|---|---|
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| 0000729580-18-000028-index.html | 2018-11-07 15:32:32 | |
| 0000729580-18-000028.txt | 2018-11-07 15:32:32 | |
 0000729580-18-000028-xbrl.zip | 148042 | 2018-11-07 15:32:32 |
| bel10-q.htm | 998344 | 2018-11-07 15:32:32 |
| belfb-20180930.xml | 1245998 | 2018-11-07 15:32:32 |
| belfb-20180930.xsd | 41207 | 2018-11-07 15:32:32 |
| belfb-20180930_cal.xml | 55133 | 2018-11-07 15:32:32 |
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| belfb-20180930_lab.xml | 533735 | 2018-11-07 15:32:32 |
| belfb-20180930_pre.xml | 343071 | 2018-11-07 15:32:32 |
| ex31-1.htm | 11326 | 2018-11-07 15:32:32 |
| ex31-2.htm | 11546 | 2018-11-07 15:32:32 |
| ex32-1.htm | 3508 | 2018-11-07 15:32:32 |
| ex32-2.htm | 3964 | 2018-11-07 15:32:32 |
| FilingSummary.xml | 30296 | 2018-11-07 15:32:32 |
| Financial_Report.xlsx | 66088 | 2018-11-07 15:32:32 |
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| report.css | 2767 | 2018-11-07 15:32:32 |
| Show.js | 1085 | 2018-11-07 15:32:32 |