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| 0000950170-22-022201-index.html | 2022-11-04 16:27:22 | |
| 0000950170-22-022201.txt | 2022-11-04 16:27:22 | |
 0000950170-22-022201-xbrl.zip | 281153 | 2022-11-04 16:27:22 |
| bhe-20220930.htm | 4303974 | 2022-11-04 16:27:22 |
| bhe-20220930.xsd | 54919 | 2022-11-04 16:27:22 |
| bhe-20220930_cal.xml | 55620 | 2022-11-04 16:27:22 |
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| bhe-20220930_htm.xml | 4773404 | 2022-11-04 16:27:22 |
| bhe-20220930_lab.xml | 508543 | 2022-11-04 16:27:22 |
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| bhe-ex32_1.htm | 10357 | 2022-11-04 16:27:22 |
| bhe-ex32_2.htm | 10360 | 2022-11-04 16:27:22 |
| FilingSummary.xml | 49681 | 2022-11-04 16:27:22 |
| Financial_Report.xlsx | 114439 | 2022-11-04 16:27:22 |
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| R1.htm | 51539 | 2022-11-04 16:27:22 |
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| report.css | 2767 | 2022-11-04 16:27:22 |
| Show.js | 1085 | 2022-11-04 16:27:22 |