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| 0000010048-20-000003-index.html | 2020-02-12 14:44:54 | |
| 0000010048-20-000003.txt | 2020-02-12 14:44:54 | |
 0000010048-20-000003-xbrl.zip | 178304 | 2020-02-12 14:44:54 |
| brn-20191231.xml | 1300164 | 2020-02-12 14:44:54 |
| brn-20191231.xsd | 51390 | 2020-02-12 14:44:54 |
| brn-20191231_cal.xml | 92984 | 2020-02-12 14:44:54 |
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| brn-20191231_lab.xml | 590383 | 2020-02-12 14:44:54 |
| brn-20191231_pre.xml | 365282 | 2020-02-12 14:44:54 |
| brn10q123119.htm | 909929 | 2020-02-12 14:44:54 |
| exhibit311123119.htm | 13343 | 2020-02-12 14:44:54 |
| exhibit312123119.htm | 13289 | 2020-02-12 14:44:54 |
| exhibit32123119.htm | 10936 | 2020-02-12 14:44:54 |
| FilingSummary.xml | 33756 | 2020-02-12 14:44:54 |
| Financial_Report.xlsx | 68548 | 2020-02-12 14:44:54 |
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| report.css | 2767 | 2020-02-12 14:44:54 |
| Show.js | 1085 | 2020-02-12 14:44:54 |