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| 0001654954-21-008782-index.html | 2021-08-12 07:31:08 | |
| 0001654954-21-008782.txt | 2021-08-12 07:31:08 | |
 0001654954-21-008782-xbrl.zip | 104755 | 2021-08-12 07:31:08 |
| bkti-20210630.xsd | 37476 | 2021-08-12 07:31:08 |
| bkti-20210630_cal.xml | 47200 | 2021-08-12 07:31:08 |
| bkti-20210630_def.xml | 60207 | 2021-08-12 07:31:08 |
| bkti-20210630_lab.xml | 255507 | 2021-08-12 07:31:08 |
| bkti-20210630_pre.xml | 193062 | 2021-08-12 07:31:08 |
| bkti_10q.htm | 643591 | 2021-08-12 07:31:08 |
| bkti_10q_htm.xml | 660800 | 2021-08-12 07:31:08 |
| bkti_ex311.htm | 7734 | 2021-08-12 07:31:08 |
| bkti_ex312.htm | 7822 | 2021-08-12 07:31:08 |
| bkti_ex321.htm | 3757 | 2021-08-12 07:31:08 |
| bkti_ex322.htm | 3920 | 2021-08-12 07:31:08 |
| FilingSummary.xml | 26062 | 2021-08-12 07:31:08 |
| Financial_Report.xlsx | 58839 | 2021-08-12 07:31:08 |
| MetaLinks.json | 368615 | 2021-08-12 07:31:08 |
| R1.htm | 52206 | 2021-08-12 07:31:08 |
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| R9.htm | 10813 | 2021-08-12 07:31:08 |
| report.css | 2767 | 2021-08-12 07:31:08 |
| Show.js | 1085 | 2021-08-12 07:31:08 |