Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000729580-15-000009-index-headers.html | 2015-03-13 16:57:25 | |
| 0000729580-15-000009-index.html | 2015-03-13 16:57:25 | |
| 0000729580-15-000009.txt | 2015-03-13 16:57:25 | |
 0000729580-15-000009-xbrl.zip | 327172 | 2015-03-13 16:57:25 |
| bel10-k.htm | 2426896 | 2015-03-13 16:57:25 |
| belfb-20141231.xml | 3300573 | 2015-03-13 16:57:25 |
| belfb-20141231.xsd | 79327 | 2015-03-13 16:57:25 |
| belfb-20141231_cal.xml | 118793 | 2015-03-13 16:57:25 |
| belfb-20141231_def.xml | 502651 | 2015-03-13 16:57:25 |
| belfb-20141231_lab.xml | 1268550 | 2015-03-13 16:57:25 |
| belfb-20141231_pre.xml | 713885 | 2015-03-13 16:57:25 |
| ex12-1.htm | 39382 | 2015-03-13 16:57:25 |
| ex21-1.htm | 54649 | 2015-03-13 16:57:25 |
| ex23-1.htm | 1908 | 2015-03-13 16:57:25 |
| ex31-1.htm | 11267 | 2015-03-13 16:57:25 |
| ex31-2.htm | 11575 | 2015-03-13 16:57:25 |
| ex32-1.htm | 4304 | 2015-03-13 16:57:25 |
| ex32-2.htm | 4669 | 2015-03-13 16:57:25 |
| FilingSummary.xml | 39035 | 2015-03-13 16:57:25 |
| Financial_Report.xls | 3006177 | 2015-03-13 16:57:25 |
| Financial_Report.xlsx | 306211 | 2015-03-13 16:57:25 |
 image00001.jpg | 66492 | 2015-03-13 16:57:25 |
| R1.htm | 43822 | 2015-03-13 16:57:25 |
| R10.htm | 97404 | 2015-03-13 16:57:25 |
| R11.htm | 175050 | 2015-03-13 16:57:25 |
| R12.htm | 42586 | 2015-03-13 16:57:25 |
| R13.htm | 114579 | 2015-03-13 16:57:25 |
| R14.htm | 13670 | 2015-03-13 16:57:25 |
| R15.htm | 9302 | 2015-03-13 16:57:25 |
| R16.htm | 15134 | 2015-03-13 16:57:25 |
| R17.htm | 20070 | 2015-03-13 16:57:25 |
| R18.htm | 191753 | 2015-03-13 16:57:25 |
| R19.htm | 20311 | 2015-03-13 16:57:25 |
| R2.htm | 137501 | 2015-03-13 16:57:25 |
| R20.htm | 27371 | 2015-03-13 16:57:25 |
| R21.htm | 228671 | 2015-03-13 16:57:25 |
| R22.htm | 73092 | 2015-03-13 16:57:25 |
| R23.htm | 24063 | 2015-03-13 16:57:25 |
| R24.htm | 8862 | 2015-03-13 16:57:25 |
| R25.htm | 22704 | 2015-03-13 16:57:25 |
| R26.htm | 77716 | 2015-03-13 16:57:25 |
| R27.htm | 8982 | 2015-03-13 16:57:25 |
| R28.htm | 65040 | 2015-03-13 16:57:25 |
| R29.htm | 6720 | 2015-03-13 16:57:25 |
| R3.htm | 42009 | 2015-03-13 16:57:25 |
| R30.htm | 78970 | 2015-03-13 16:57:25 |
| R31.htm | 159030 | 2015-03-13 16:57:25 |
| R32.htm | 59248 | 2015-03-13 16:57:25 |
| R33.htm | 183726 | 2015-03-13 16:57:25 |
| R34.htm | 40492 | 2015-03-13 16:57:25 |
| R35.htm | 111464 | 2015-03-13 16:57:25 |
| R36.htm | 13864 | 2015-03-13 16:57:25 |
| R37.htm | 18651 | 2015-03-13 16:57:25 |
| R38.htm | 185369 | 2015-03-13 16:57:25 |
| R39.htm | 12972 | 2015-03-13 16:57:25 |
| R4.htm | 76382 | 2015-03-13 16:57:25 |
| R40.htm | 29473 | 2015-03-13 16:57:25 |
| R41.htm | 232033 | 2015-03-13 16:57:25 |
| R42.htm | 74970 | 2015-03-13 16:57:25 |
| R43.htm | 18423 | 2015-03-13 16:57:25 |
| R44.htm | 13417 | 2015-03-13 16:57:25 |
| R45.htm | 77091 | 2015-03-13 16:57:25 |
| R46.htm | 63393 | 2015-03-13 16:57:25 |
| R47.htm | 204818 | 2015-03-13 16:57:25 |
| R48.htm | 356110 | 2015-03-13 16:57:25 |
| R49.htm | 50952 | 2015-03-13 16:57:25 |
| R5.htm | 38191 | 2015-03-13 16:57:25 |
| R50.htm | 135738 | 2015-03-13 16:57:25 |
| R51.htm | 37765 | 2015-03-13 16:57:25 |
| R52.htm | 44945 | 2015-03-13 16:57:25 |
| R53.htm | 18360 | 2015-03-13 16:57:25 |
| R54.htm | 32404 | 2015-03-13 16:57:25 |
| R55.htm | 413594 | 2015-03-13 16:57:25 |
| R56.htm | 118696 | 2015-03-13 16:57:25 |
| R57.htm | 52638 | 2015-03-13 16:57:25 |
| R58.htm | 267483 | 2015-03-13 16:57:25 |
| R59.htm | 152548 | 2015-03-13 16:57:25 |
| R6.htm | 19855 | 2015-03-13 16:57:25 |
| R60.htm | 226134 | 2015-03-13 16:57:25 |
| R61.htm | 74661 | 2015-03-13 16:57:25 |
| R62.htm | 53874 | 2015-03-13 16:57:25 |
| R63.htm | 61822 | 2015-03-13 16:57:25 |
| R64.htm | 85463 | 2015-03-13 16:57:25 |
| R65.htm | 7786 | 2015-03-13 16:57:25 |
| R66.htm | 51897 | 2015-03-13 16:57:25 |
| R67.htm | 11702 | 2015-03-13 16:57:25 |
| R68.htm | 50692 | 2015-03-13 16:57:25 |
| R7.htm | 116569 | 2015-03-13 16:57:25 |
| R8.htm | 19784 | 2015-03-13 16:57:25 |
| R9.htm | 188942 | 2015-03-13 16:57:25 |
| report.css | 2740 | 2015-03-13 16:57:25 |
| Show.js | 1410 | 2015-03-13 16:57:25 |