Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-25-007631-index-headers.html | 2025-03-14 09:17:15 | |
| 0001437749-25-007631-index.html | 2025-03-14 09:17:15 | |
| 0001437749-25-007631.txt | 2025-03-14 09:17:15 | |
 0001437749-25-007631-xbrl.zip | 166693 | 2025-03-14 09:17:15 |
| buks-20250131.xsd | 60497 | 2025-03-14 09:17:15 |
| buks-20250131_cal.xml | 51200 | 2025-03-14 09:17:15 |
| buks-20250131_def.xml | 386291 | 2025-03-14 09:17:15 |
| buks-20250131_lab.xml | 325934 | 2025-03-14 09:17:15 |
| buks-20250131_pre.xml | 422133 | 2025-03-14 09:17:15 |
| buks20250131_10q.htm | 1673968 | 2025-03-14 09:17:15 |
| buks20250131_10q_htm.xml | 1247066 | 2025-03-14 09:17:15 |
| ex_754790.htm | 13392 | 2025-03-14 09:17:15 |
| ex_754791.htm | 13423 | 2025-03-14 09:17:15 |
| ex_754792.htm | 7125 | 2025-03-14 09:17:15 |
| ex_754793.htm | 7810 | 2025-03-14 09:17:15 |
| FilingSummary.xml | 42813 | 2025-03-14 09:17:15 |
| Financial_Report.xlsx | 77901 | 2025-03-14 09:17:15 |
| MetaLinks.json | 741305 | 2025-03-14 09:17:15 |
| R1.htm | 48586 | 2025-03-14 09:17:15 |
| R10.htm | 136972 | 2025-03-14 09:17:15 |
| R11.htm | 14447 | 2025-03-14 09:17:15 |
| R12.htm | 14263 | 2025-03-14 09:17:15 |
| R13.htm | 27332 | 2025-03-14 09:17:15 |
| R14.htm | 5197 | 2025-03-14 09:17:15 |
| R15.htm | 6315 | 2025-03-14 09:17:15 |
| R16.htm | 16011 | 2025-03-14 09:17:15 |
| R17.htm | 6724 | 2025-03-14 09:17:15 |
| R18.htm | 22131 | 2025-03-14 09:17:15 |
| R19.htm | 32632 | 2025-03-14 09:17:15 |
| R2.htm | 137031 | 2025-03-14 09:17:15 |
| R20.htm | 28287 | 2025-03-14 09:17:15 |
| R21.htm | 14522 | 2025-03-14 09:17:15 |
| R22.htm | 16640 | 2025-03-14 09:17:15 |
| R23.htm | 92523 | 2025-03-14 09:17:15 |
| R24.htm | 5781 | 2025-03-14 09:17:15 |
| R25.htm | 12702 | 2025-03-14 09:17:15 |
| R26.htm | 136242 | 2025-03-14 09:17:15 |
| R27.htm | 11035 | 2025-03-14 09:17:15 |
| R28.htm | 13316 | 2025-03-14 09:17:15 |
| R29.htm | 26318 | 2025-03-14 09:17:15 |
| R3.htm | 27910 | 2025-03-14 09:17:15 |
| R30.htm | 16519 | 2025-03-14 09:17:15 |
| R31.htm | 30436 | 2025-03-14 09:17:15 |
| R32.htm | 29913 | 2025-03-14 09:17:15 |
| R33.htm | 12927 | 2025-03-14 09:17:15 |
| R34.htm | 18607 | 2025-03-14 09:17:15 |
| R35.htm | 82101 | 2025-03-14 09:17:15 |
| R36.htm | 2592 | 2025-03-14 09:17:15 |
| R37.htm | 57024 | 2025-03-14 09:17:15 |
| R38.htm | 14587 | 2025-03-14 09:17:15 |
| R39.htm | 9026 | 2025-03-14 09:17:15 |
| R4.htm | 85034 | 2025-03-14 09:17:15 |
| R40.htm | 4924 | 2025-03-14 09:17:15 |
| R41.htm | 10453 | 2025-03-14 09:17:15 |
| R42.htm | 3266 | 2025-03-14 09:17:15 |
| R43.htm | 19608 | 2025-03-14 09:17:15 |
| R44.htm | 8940 | 2025-03-14 09:17:15 |
| R45.htm | 4049 | 2025-03-14 09:17:15 |
| R46.htm | 47879 | 2025-03-14 09:17:15 |
| R47.htm | 11667 | 2025-03-14 09:17:15 |
| R48.htm | 37601 | 2025-03-14 09:17:15 |
| R49.htm | 17542 | 2025-03-14 09:17:15 |
| R5.htm | 82943 | 2025-03-14 09:17:15 |
| R50.htm | 6635 | 2025-03-14 09:17:15 |
| R51.htm | 11303 | 2025-03-14 09:17:15 |
| R52.htm | 7514 | 2025-03-14 09:17:15 |
| R53.htm | 7022 | 2025-03-14 09:17:15 |
| R54.htm | 23432 | 2025-03-14 09:17:15 |
| R55.htm | 12371 | 2025-03-14 09:17:15 |
| R56.htm | 10661 | 2025-03-14 09:17:15 |
| R57.htm | 25027 | 2025-03-14 09:17:15 |
| R58.htm | 6282 | 2025-03-14 09:17:15 |
| R59.htm | 31961 | 2025-03-14 09:17:15 |
| R6.htm | 95786 | 2025-03-14 09:17:15 |
| R60.htm | 19997 | 2025-03-14 09:17:15 |
| R61.htm | 31591 | 2025-03-14 09:17:15 |
| R62.htm | 10668 | 2025-03-14 09:17:15 |
| R63.htm | 4041 | 2025-03-14 09:17:15 |
| R7.htm | 6907 | 2025-03-14 09:17:15 |
| R8.htm | 5662 | 2025-03-14 09:17:15 |
| R9.htm | 22750 | 2025-03-14 09:17:15 |
| report.css | 2767 | 2025-03-14 09:17:15 |
| Show.js | 1085 | 2025-03-14 09:17:15 |