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|---|---|---|
 0001654954-21-005555-index-headers.html | 2021-05-13 07:33:40 | |
| 0001654954-21-005555-index.html | 2021-05-13 07:33:40 | |
| 0001654954-21-005555.txt | 2021-05-13 07:33:40 | |
 0001654954-21-005555-xbrl.zip | 59676 | 2021-05-13 07:33:40 |
| bkti-20210331.xml | 472103 | 2021-05-13 07:33:40 |
| bkti-20210331.xsd | 24394 | 2021-05-13 07:33:40 |
| bkti-20210331_cal.xml | 46936 | 2021-05-13 07:33:40 |
| bkti-20210331_def.xml | 27856 | 2021-05-13 07:33:40 |
| bkti-20210331_lab.xml | 203146 | 2021-05-13 07:33:40 |
| bkti-20210331_pre.xml | 145188 | 2021-05-13 07:33:40 |
| bkti_10q.htm | 587160 | 2021-05-13 07:33:40 |
| bkti_ex311.htm | 10652 | 2021-05-13 07:33:40 |
| bkti_ex312.htm | 10730 | 2021-05-13 07:33:40 |
| bkti_ex321.htm | 5762 | 2021-05-13 07:33:40 |
| bkti_ex322.htm | 5858 | 2021-05-13 07:33:40 |
| FilingSummary.xml | 22203 | 2021-05-13 07:33:40 |
| Financial_Report.xlsx | 49637 | 2021-05-13 07:33:40 |
| R1.htm | 32696 | 2021-05-13 07:33:40 |
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| R9.htm | 12768 | 2021-05-13 07:33:40 |
| report.css | 2767 | 2021-05-13 07:33:40 |
| Show.js | 1085 | 2021-05-13 07:33:40 |