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| 0001564590-21-018948-index.html | 2021-04-15 12:14:43 | |
| 0001564590-21-018948.txt | 2021-04-15 12:14:43 | |
 0001564590-21-018948-xbrl.zip | 157139 | 2021-04-15 12:14:43 |
| brst-10q_20200630.htm | 2221628 | 2021-04-15 12:14:43 |
| brst-20200630.xml | 1504050 | 2021-04-15 12:14:43 |
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| FilingSummary.xml | 30175 | 2021-04-15 12:14:43 |
| Financial_Report.xlsx | 87040 | 2021-04-15 12:14:43 |
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| report.css | 2767 | 2021-04-15 12:14:43 |
| Show.js | 1085 | 2021-04-15 12:14:43 |