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| 0001654954-20-008480-index.html | 2020-08-05 16:51:21 | |
| 0001654954-20-008480.txt | 2020-08-05 16:51:21 | |
 0001654954-20-008480-xbrl.zip | 61990 | 2020-08-05 16:51:21 |
| bkti-20200630.xml | 410144 | 2020-08-05 16:51:21 |
| bkti-20200630.xsd | 24100 | 2020-08-05 16:51:21 |
| bkti-20200630_cal.xml | 46891 | 2020-08-05 16:51:21 |
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| bkti-20200630_lab.xml | 203975 | 2020-08-05 16:51:21 |
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| bkti_10q.htm | 778509 | 2020-08-05 16:51:21 |
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| bkti_ex311.htm | 10650 | 2020-08-05 16:51:21 |
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| bkti_ex321.htm | 5759 | 2020-08-05 16:51:21 |
| bkti_ex322.htm | 5855 | 2020-08-05 16:51:21 |
| FilingSummary.xml | 22203 | 2020-08-05 16:51:21 |
| Financial_Report.xlsx | 54221 | 2020-08-05 16:51:21 |
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| R18.htm | 20205 | 2020-08-05 16:51:21 |
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| report.css | 2767 | 2020-08-05 16:51:21 |
| Show.js | 1085 | 2020-08-05 16:51:21 |