Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000010048-19-000007-index-headers.html | 2019-02-13 15:09:19 | |
| 0000010048-19-000007-index.html | 2019-02-13 15:09:19 | |
| 0000010048-19-000007.txt | 2019-02-13 15:09:19 | |
 0000010048-19-000007-xbrl.zip | 165706 | 2019-02-13 15:09:19 |
| brn-20181231.xml | 1196356 | 2019-02-13 15:09:19 |
| brn-20181231.xsd | 41320 | 2019-02-13 15:09:19 |
| brn-20181231_cal.xml | 76187 | 2019-02-13 15:09:19 |
| brn-20181231_def.xml | 172879 | 2019-02-13 15:09:19 |
| brn-20181231_lab.xml | 529626 | 2019-02-13 15:09:19 |
| brn-20181231_pre.xml | 300740 | 2019-02-13 15:09:19 |
| brn10q123118.htm | 864820 | 2019-02-13 15:09:19 |
| exhibit311123118.htm | 13332 | 2019-02-13 15:09:19 |
| exhibit312123118.htm | 13278 | 2019-02-13 15:09:19 |
| exhibit32123118.htm | 10929 | 2019-02-13 15:09:19 |
| FilingSummary.xml | 27329 | 2019-02-13 15:09:19 |
| Financial_Report.xlsx | 66197 | 2019-02-13 15:09:19 |
| R1.htm | 22221 | 2019-02-13 15:09:19 |
| R10.htm | 35879 | 2019-02-13 15:09:19 |
| R11.htm | 34285 | 2019-02-13 15:09:19 |
| R12.htm | 47936 | 2019-02-13 15:09:19 |
| R13.htm | 10294 | 2019-02-13 15:09:19 |
| R14.htm | 45031 | 2019-02-13 15:09:19 |
| R15.htm | 26304 | 2019-02-13 15:09:19 |
| R16.htm | 178511 | 2019-02-13 15:09:19 |
| R17.htm | 53758 | 2019-02-13 15:09:19 |
| R18.htm | 30003 | 2019-02-13 15:09:19 |
| R19.htm | 9382 | 2019-02-13 15:09:19 |
| R2.htm | 93733 | 2019-02-13 15:09:19 |
| R20.htm | 17066 | 2019-02-13 15:09:19 |
| R21.htm | 7394 | 2019-02-13 15:09:19 |
| R22.htm | 45424 | 2019-02-13 15:09:19 |
| R23.htm | 32679 | 2019-02-13 15:09:19 |
| R24.htm | 34005 | 2019-02-13 15:09:19 |
| R25.htm | 42628 | 2019-02-13 15:09:19 |
| R26.htm | 26032 | 2019-02-13 15:09:19 |
| R27.htm | 165645 | 2019-02-13 15:09:19 |
| R28.htm | 53865 | 2019-02-13 15:09:19 |
| R29.htm | 28891 | 2019-02-13 15:09:19 |
| R3.htm | 13197 | 2019-02-13 15:09:19 |
| R30.htm | 14423 | 2019-02-13 15:09:19 |
| R31.htm | 11718 | 2019-02-13 15:09:19 |
| R32.htm | 31453 | 2019-02-13 15:09:19 |
| R33.htm | 131316 | 2019-02-13 15:09:19 |
| R34.htm | 16921 | 2019-02-13 15:09:19 |
| R35.htm | 26746 | 2019-02-13 15:09:19 |
| R36.htm | 19591 | 2019-02-13 15:09:19 |
| R37.htm | 50960 | 2019-02-13 15:09:19 |
| R38.htm | 77737 | 2019-02-13 15:09:19 |
| R39.htm | 10426 | 2019-02-13 15:09:19 |
| R4.htm | 55564 | 2019-02-13 15:09:19 |
| R40.htm | 18655 | 2019-02-13 15:09:19 |
| R41.htm | 50076 | 2019-02-13 15:09:19 |
| R42.htm | 32287 | 2019-02-13 15:09:19 |
| R43.htm | 15808 | 2019-02-13 15:09:19 |
| R44.htm | 20341 | 2019-02-13 15:09:19 |
| R5.htm | 22413 | 2019-02-13 15:09:19 |
| R6.htm | 7871 | 2019-02-13 15:09:19 |
| R7.htm | 31806 | 2019-02-13 15:09:19 |
| R8.htm | 7820 | 2019-02-13 15:09:19 |
| R9.htm | 73246 | 2019-02-13 15:09:19 |
| report.css | 2767 | 2019-02-13 15:09:19 |
| Show.js | 1085 | 2019-02-13 15:09:19 |