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| 0001654954-21-012011-index.html | 2021-11-12 07:02:56 | |
| 0001654954-21-012011.txt | 2021-11-12 07:02:56 | |
 0001654954-21-012011-xbrl.zip | 115574 | 2021-11-12 07:02:56 |
| bkti-20210930.xsd | 43971 | 2021-11-12 07:02:56 |
| bkti-20210930_cal.xml | 42665 | 2021-11-12 07:02:56 |
| bkti-20210930_def.xml | 73651 | 2021-11-12 07:02:56 |
| bkti-20210930_lab.xml | 271027 | 2021-11-12 07:02:56 |
| bkti-20210930_pre.xml | 207597 | 2021-11-12 07:02:56 |
| bkti_10q.htm | 848420 | 2021-11-12 07:02:56 |
| bkti_10q_htm.xml | 914712 | 2021-11-12 07:02:56 |
| bkti_ex311.htm | 9944 | 2021-11-12 07:02:56 |
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| bkti_ex321.htm | 4091 | 2021-11-12 07:02:56 |
| bkti_ex322.htm | 4154 | 2021-11-12 07:02:56 |
| FilingSummary.xml | 27131 | 2021-11-12 07:02:56 |
| Financial_Report.xlsx | 63957 | 2021-11-12 07:02:56 |
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| report.css | 2767 | 2021-11-12 07:02:56 |
| Show.js | 1085 | 2021-11-12 07:02:56 |