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|---|---|---|
 0001654954-19-008911-index-headers.html | 2019-08-06 16:35:32 | |
| 0001654954-19-008911-index.html | 2019-08-06 16:35:32 | |
| 0001654954-19-008911.txt | 2019-08-06 16:35:32 | |
 0001654954-19-008911-xbrl.zip | 60568 | 2019-08-06 16:35:32 |
| bkti-20190630.xml | 413329 | 2019-08-06 16:35:32 |
| bkti-20190630.xsd | 21709 | 2019-08-06 16:35:32 |
| bkti-20190630_cal.xml | 44800 | 2019-08-06 16:35:32 |
| bkti-20190630_def.xml | 27363 | 2019-08-06 16:35:32 |
| bkti-20190630_lab.xml | 205135 | 2019-08-06 16:35:32 |
| bkti-20190630_pre.xml | 145266 | 2019-08-06 16:35:32 |
| bkti_10q.htm | 729952 | 2019-08-06 16:35:32 |
| bkti_321.htm | 5586 | 2019-08-06 16:35:32 |
| bkti_ex311.htm | 10310 | 2019-08-06 16:35:32 |
| bkti_ex312.htm | 10463 | 2019-08-06 16:35:32 |
| bkti_ex322.htm | 5685 | 2019-08-06 16:35:32 |
| FilingSummary.xml | 20771 | 2019-08-06 16:35:32 |
| Financial_Report.xlsx | 43879 | 2019-08-06 16:35:32 |
| R1.htm | 27720 | 2019-08-06 16:35:32 |
| R10.htm | 7549 | 2019-08-06 16:35:32 |
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| R19.htm | 8550 | 2019-08-06 16:35:32 |
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| R8.htm | 4445 | 2019-08-06 16:35:32 |
| R9.htm | 8284 | 2019-08-06 16:35:32 |
| report.css | 2767 | 2019-08-06 16:35:32 |
| Show.js | 1085 | 2019-08-06 16:35:32 |