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| 0001564590-21-028368-index.html | 2021-05-17 16:00:45 | |
| 0001564590-21-028368.txt | 2021-05-17 16:00:45 | |
 0001564590-21-028368-xbrl.zip | 149914 | 2021-05-17 16:00:45 |
| brst-10q_20210331.htm | 1868876 | 2021-05-17 16:00:45 |
| brst-20210331.xml | 1476409 | 2021-05-17 16:00:45 |
| brst-20210331.xsd | 57191 | 2021-05-17 16:00:45 |
| brst-20210331_cal.xml | 57206 | 2021-05-17 16:00:45 |
| brst-20210331_def.xml | 244299 | 2021-05-17 16:00:45 |
| brst-20210331_lab.xml | 474116 | 2021-05-17 16:00:45 |
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| brst-ex321_8.htm | 14223 | 2021-05-17 16:00:45 |
| FilingSummary.xml | 29552 | 2021-05-17 16:00:45 |
| Financial_Report.xlsx | 79624 | 2021-05-17 16:00:45 |
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| report.css | 2767 | 2021-05-17 16:00:45 |
| Show.js | 1085 | 2021-05-17 16:00:45 |