Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-19-005020-index-headers.html | 2019-03-15 13:10:12 | |
| 0001437749-19-005020-index.html | 2019-03-15 13:10:12 | |
| 0001437749-19-005020.txt | 2019-03-15 13:10:12 | |
 0001437749-19-005020-xbrl.zip | 61293 | 2019-03-15 13:10:12 |
| buks-20190131.xml | 276166 | 2019-03-15 13:10:12 |
| buks-20190131.xsd | 29681 | 2019-03-15 13:10:12 |
| buks-20190131_cal.xml | 36108 | 2019-03-15 13:10:12 |
| buks-20190131_def.xml | 195245 | 2019-03-15 13:10:12 |
| buks-20190131_lab.xml | 184109 | 2019-03-15 13:10:12 |
| buks-20190131_pre.xml | 213361 | 2019-03-15 13:10:12 |
| buks20190131_10q.htm | 804231 | 2019-03-15 13:10:12 |
| ex_137347.htm | 13871 | 2019-03-15 13:10:12 |
| ex_137348.htm | 13768 | 2019-03-15 13:10:12 |
| ex_137349.htm | 6554 | 2019-03-15 13:10:12 |
| ex_137350.htm | 6522 | 2019-03-15 13:10:12 |
| FilingSummary.xml | 20484 | 2019-03-15 13:10:12 |
| Financial_Report.xlsx | 33425 | 2019-03-15 13:10:12 |
| R1.htm | 27747 | 2019-03-15 13:10:12 |
| R10.htm | 6155 | 2019-03-15 13:10:12 |
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| R8.htm | 20762 | 2019-03-15 13:10:12 |
| R9.htm | 6158 | 2019-03-15 13:10:12 |
| report.css | 2767 | 2019-03-15 13:10:12 |
| Show.js | 1085 | 2019-03-15 13:10:12 |