Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-21-025485-index-headers.html | 2021-11-05 14:24:04 | |
| 0001437749-21-025485-index.html | 2021-11-05 14:24:04 | |
| 0001437749-21-025485.txt | 2021-11-05 14:24:04 | |
 0001437749-21-025485-xbrl.zip | 167447 | 2021-11-05 14:24:04 |
| belfa-20210930.xsd | 54795 | 2021-11-05 14:24:04 |
| belfa-20210930_cal.xml | 49490 | 2021-11-05 14:24:04 |
| belfa-20210930_def.xml | 408262 | 2021-11-05 14:24:04 |
| belfa-20210930_lab.xml | 327425 | 2021-11-05 14:24:04 |
| belfa-20210930_pre.xml | 436863 | 2021-11-05 14:24:04 |
| belfb20210930_10q.htm | 1576665 | 2021-11-05 14:24:04 |
| belfb20210930_10q_htm.xml | 1430083 | 2021-11-05 14:24:04 |
| ex_278419.htm | 14109 | 2021-11-05 14:24:04 |
| ex_278420.htm | 14585 | 2021-11-05 14:24:04 |
| ex_278421.htm | 4941 | 2021-11-05 14:24:04 |
| ex_278422.htm | 4954 | 2021-11-05 14:24:04 |
| FilingSummary.xml | 40137 | 2021-11-05 14:24:04 |
| Financial_Report.xlsx | 76388 | 2021-11-05 14:24:04 |
| MetaLinks.json | 645664 | 2021-11-05 14:24:04 |
| R1.htm | 57049 | 2021-11-05 14:24:04 |
| R10.htm | 16364 | 2021-11-05 14:24:04 |
| R11.htm | 66303 | 2021-11-05 14:24:04 |
| R12.htm | 92885 | 2021-11-05 14:24:04 |
| R13.htm | 56199 | 2021-11-05 14:24:04 |
| R14.htm | 13702 | 2021-11-05 14:24:04 |
| R15.htm | 14001 | 2021-11-05 14:24:04 |
| R16.htm | 19794 | 2021-11-05 14:24:04 |
| R17.htm | 36937 | 2021-11-05 14:24:04 |
| R18.htm | 19708 | 2021-11-05 14:24:04 |
| R19.htm | 11262 | 2021-11-05 14:24:04 |
| R2.htm | 125091 | 2021-11-05 14:24:04 |
| R20.htm | 32589 | 2021-11-05 14:24:04 |
| R21.htm | 44603 | 2021-11-05 14:24:04 |
| R22.htm | 10068 | 2021-11-05 14:24:04 |
| R23.htm | 67367 | 2021-11-05 14:24:04 |
| R24.htm | 6254 | 2021-11-05 14:24:04 |
| R25.htm | 13988 | 2021-11-05 14:24:04 |
| R26.htm | 57737 | 2021-11-05 14:24:04 |
| R27.htm | 88760 | 2021-11-05 14:24:04 |
| R28.htm | 54413 | 2021-11-05 14:24:04 |
| R29.htm | 13962 | 2021-11-05 14:24:04 |
| R3.htm | 22767 | 2021-11-05 14:24:04 |
| R30.htm | 16863 | 2021-11-05 14:24:04 |
| R31.htm | 36536 | 2021-11-05 14:24:04 |
| R32.htm | 26300 | 2021-11-05 14:24:04 |
| R33.htm | 43226 | 2021-11-05 14:24:04 |
| R34.htm | 62665 | 2021-11-05 14:24:04 |
| R35.htm | 17416 | 2021-11-05 14:24:04 |
| R36.htm | 41921 | 2021-11-05 14:24:04 |
| R37.htm | 58468 | 2021-11-05 14:24:04 |
| R38.htm | 12140 | 2021-11-05 14:24:04 |
| R39.htm | 2876 | 2021-11-05 14:24:04 |
| R4.htm | 69919 | 2021-11-05 14:24:04 |
| R40.htm | 8715 | 2021-11-05 14:24:04 |
| R41.htm | 34422 | 2021-11-05 14:24:04 |
| R42.htm | 6201 | 2021-11-05 14:24:04 |
| R43.htm | 30573 | 2021-11-05 14:24:04 |
| R44.htm | 19099 | 2021-11-05 14:24:04 |
| R45.htm | 10680 | 2021-11-05 14:24:04 |
| R46.htm | 6122 | 2021-11-05 14:24:04 |
| R47.htm | 16279 | 2021-11-05 14:24:04 |
| R48.htm | 15440 | 2021-11-05 14:24:04 |
| R49.htm | 13066 | 2021-11-05 14:24:04 |
| R5.htm | 30262 | 2021-11-05 14:24:04 |
| R50.htm | 58226 | 2021-11-05 14:24:04 |
| R51.htm | 20059 | 2021-11-05 14:24:04 |
| R52.htm | 13417 | 2021-11-05 14:24:04 |
| R53.htm | 14833 | 2021-11-05 14:24:04 |
| R54.htm | 9782 | 2021-11-05 14:24:04 |
| R55.htm | 14138 | 2021-11-05 14:24:04 |
| R56.htm | 7011 | 2021-11-05 14:24:04 |
| R57.htm | 28099 | 2021-11-05 14:24:04 |
| R58.htm | 4695 | 2021-11-05 14:24:04 |
| R59.htm | 7029 | 2021-11-05 14:24:04 |
| R6.htm | 9566 | 2021-11-05 14:24:04 |
| R60.htm | 25848 | 2021-11-05 14:24:04 |
| R61.htm | 4974 | 2021-11-05 14:24:04 |
| R7.htm | 112383 | 2021-11-05 14:24:04 |
| R8.htm | 12608 | 2021-11-05 14:24:04 |
| R9.htm | 101640 | 2021-11-05 14:24:04 |
| report.css | 2767 | 2021-11-05 14:24:04 |
| Show.js | 1085 | 2021-11-05 14:24:04 |