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 0001558370-20-010124-index-headers.html | 2020-08-10 14:05:34 | |
| 0001558370-20-010124-index.html | 2020-08-10 14:05:34 | |
| 0001558370-20-010124.txt | 2020-08-10 14:05:34 | |
 0001558370-20-010124-xbrl.zip | 206825 | 2020-08-10 14:05:34 |
| bstc-20200630.xsd | 31181 | 2020-08-10 14:05:34 |
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| bstc-20200630x10q_htm.xml | 1110965 | 2020-08-10 14:05:34 |
| bstc-20200630xex10d5.htm | 30593 | 2020-08-10 14:05:34 |
| bstc-20200630xex10d6.htm | 170428 | 2020-08-10 14:05:34 |
| bstc-20200630xex31d1.htm | 14434 | 2020-08-10 14:05:34 |
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| bstc-20200630xex32d1.htm | 8017 | 2020-08-10 14:05:34 |
| bstc-20200630_cal.xml | 39750 | 2020-08-10 14:05:34 |
| bstc-20200630_def.xml | 154627 | 2020-08-10 14:05:34 |
| bstc-20200630_lab.xml | 395347 | 2020-08-10 14:05:34 |
| bstc-20200630_pre.xml | 302034 | 2020-08-10 14:05:34 |
| FilingSummary.xml | 23076 | 2020-08-10 14:05:34 |
| Financial_Report.xlsx | 70918 | 2020-08-10 14:05:34 |
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| R1.htm | 52252 | 2020-08-10 14:05:34 |
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| R9.htm | 6299 | 2020-08-10 14:05:34 |
| report.css | 2767 | 2020-08-10 14:05:34 |
| Show.js | 1085 | 2020-08-10 14:05:34 |