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|---|---|---|
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| 0000950170-22-007880-index.html | 2022-05-05 16:32:50 | |
| 0000950170-22-007880.txt | 2022-05-05 16:32:50 | |
 0000950170-22-007880-xbrl.zip | 235841 | 2022-05-05 16:32:50 |
| bhe-20220331.htm | 2884660 | 2022-05-05 16:32:50 |
| bhe-20220331.xsd | 55166 | 2022-05-05 16:32:50 |
| bhe-20220331_cal.xml | 55406 | 2022-05-05 16:32:50 |
| bhe-20220331_def.xml | 209522 | 2022-05-05 16:32:50 |
| bhe-20220331_htm.xml | 3173007 | 2022-05-05 16:32:50 |
| bhe-20220331_lab.xml | 507992 | 2022-05-05 16:32:50 |
| bhe-20220331_pre.xml | 389391 | 2022-05-05 16:32:50 |
| bhe-ex31_1.htm | 19216 | 2022-05-05 16:32:50 |
| bhe-ex31_2.htm | 18879 | 2022-05-05 16:32:50 |
| bhe-ex32_1.htm | 9659 | 2022-05-05 16:32:50 |
| bhe-ex32_2.htm | 9662 | 2022-05-05 16:32:50 |
| FilingSummary.xml | 49458 | 2022-05-05 16:32:50 |
| Financial_Report.xlsx | 100280 | 2022-05-05 16:32:50 |
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| report.css | 2767 | 2022-05-05 16:32:50 |
| Show.js | 1085 | 2022-05-05 16:32:50 |