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|---|---|---|
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| 0001654954-20-005375-index.html | 2020-05-13 16:31:21 | |
| 0001654954-20-005375.txt | 2020-05-13 16:31:21 | |
 0001654954-20-005375-xbrl.zip | 59783 | 2020-05-13 16:31:21 |
| bkti-20200331.xml | 314924 | 2020-05-13 16:31:21 |
| bkti-20200331.xsd | 24131 | 2020-05-13 16:31:21 |
| bkti-20200331_cal.xml | 46872 | 2020-05-13 16:31:21 |
| bkti-20200331_def.xml | 26401 | 2020-05-13 16:31:21 |
| bkti-20200331_lab.xml | 204257 | 2020-05-13 16:31:21 |
| bkti-20200331_pre.xml | 145919 | 2020-05-13 16:31:21 |
| bkti_10q.htm | 614244 | 2020-05-13 16:31:21 |
| bkti_ex311.htm | 10215 | 2020-05-13 16:31:21 |
| bkti_ex312.htm | 10293 | 2020-05-13 16:31:21 |
| bkti_ex321.htm | 5502 | 2020-05-13 16:31:21 |
| bkti_ex322.htm | 5854 | 2020-05-13 16:31:21 |
| FilingSummary.xml | 22689 | 2020-05-13 16:31:21 |
| Financial_Report.xlsx | 46829 | 2020-05-13 16:31:21 |
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| R9.htm | 8009 | 2020-05-13 16:31:21 |
| report.css | 2767 | 2020-05-13 16:31:21 |
| Show.js | 1085 | 2020-05-13 16:31:21 |