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|---|---|---|
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| 0001437749-20-004884-index.html | 2020-03-12 10:54:12 | |
| 0001437749-20-004884.txt | 2020-03-12 10:54:12 | |
 0001437749-20-004884-xbrl.zip | 70428 | 2020-03-12 10:54:12 |
| buks-20200131.xml | 386990 | 2020-03-12 10:54:12 |
| buks-20200131.xsd | 31722 | 2020-03-12 10:54:12 |
| buks-20200131_cal.xml | 40939 | 2020-03-12 10:54:12 |
| buks-20200131_def.xml | 205226 | 2020-03-12 10:54:12 |
| buks-20200131_lab.xml | 205818 | 2020-03-12 10:54:12 |
| buks-20200131_pre.xml | 226747 | 2020-03-12 10:54:12 |
| buks20200131_10q.htm | 1041526 | 2020-03-12 10:54:12 |
| ex_173004.htm | 14014 | 2020-03-12 10:54:12 |
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| ex_173006.htm | 6582 | 2020-03-12 10:54:12 |
| ex_173007.htm | 6558 | 2020-03-12 10:54:12 |
| FilingSummary.xml | 20934 | 2020-03-12 10:54:12 |
| Financial_Report.xlsx | 37294 | 2020-03-12 10:54:12 |
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| R9.htm | 21989 | 2020-03-12 10:54:12 |
| report.css | 2767 | 2020-03-12 10:54:12 |
| Show.js | 1085 | 2020-03-12 10:54:12 |