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| 0001437749-23-021098-index.html | 2023-07-31 08:31:43 | |
| 0001437749-23-021098.txt | 2023-07-31 08:31:43 | |
 0001437749-23-021098-xbrl.zip | 218099 | 2023-07-31 08:31:43 |
| buks-20230430.xsd | 76303 | 2023-07-31 08:31:43 |
| buks-20230430_cal.xml | 69502 | 2023-07-31 08:31:43 |
| buks-20230430_def.xml | 491418 | 2023-07-31 08:31:43 |
| buks-20230430_lab.xml | 407515 | 2023-07-31 08:31:43 |
| buks-20230430_pre.xml | 530534 | 2023-07-31 08:31:43 |
| buks20230430_10k.htm | 1544682 | 2023-07-31 08:31:43 |
| buks20230430_10k_htm.xml | 1220835 | 2023-07-31 08:31:43 |
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| FilingSummary.xml | 49954 | 2023-07-31 08:31:43 |
| Financial_Report.xlsx | 95095 | 2023-07-31 08:31:43 |
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| report.css | 2767 | 2023-07-31 08:31:43 |
| Show.js | 1085 | 2023-07-31 08:31:43 |