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| 0001437749-17-012924-index.html | 2017-07-21 15:33:19 | |
| 0001437749-17-012924.txt | 2017-07-21 15:33:19 | |
 0001437749-17-012924-xbrl.zip | 119792 | 2017-07-21 15:33:19 |
| buks-20170430.xml | 1048727 | 2017-07-21 15:33:19 |
| buks-20170430.xsd | 54213 | 2017-07-21 15:33:19 |
| buks-20170430_cal.xml | 63133 | 2017-07-21 15:33:19 |
| buks-20170430_def.xml | 351333 | 2017-07-21 15:33:19 |
| buks-20170430_lab.xml | 312663 | 2017-07-21 15:33:19 |
| buks-20170430_pre.xml | 379829 | 2017-07-21 15:33:19 |
| buks20170430_10k.htm | 1584257 | 2017-07-21 15:33:19 |
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| FilingSummary.xml | 31212 | 2017-07-21 15:33:19 |
| Financial_Report.xlsx | 52502 | 2017-07-21 15:33:19 |
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| report.css | 2767 | 2017-07-21 15:33:19 |
| Show.js | 1410 | 2017-07-21 15:33:19 |