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| 0001564590-21-028059-index.html | 2021-05-14 17:06:35 | |
| 0001564590-21-028059.txt | 2021-05-14 17:06:35 | |
 0001564590-21-028059-xbrl.zip | 189324 | 2021-05-14 17:06:35 |
| bsbk-10q_20210331.htm | 3442848 | 2021-05-14 17:06:35 |
| bsbk-20210331.xml | 4616983 | 2021-05-14 17:06:35 |
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| Financial_Report.xlsx | 81101 | 2021-05-14 17:06:35 |
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| report.css | 2767 | 2021-05-14 17:06:35 |
| Show.js | 1085 | 2021-05-14 17:06:35 |