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| 0000950170-23-017982-index.html | 2023-05-04 17:33:13 | |
| 0000950170-23-017982.txt | 2023-05-04 17:33:13 | |
 0000950170-23-017982-xbrl.zip | 237159 | 2023-05-04 17:33:13 |
| bhe-20230331.htm | 2951391 | 2023-05-04 17:33:13 |
| bhe-20230331.xsd | 54726 | 2023-05-04 17:33:13 |
| bhe-20230331_cal.xml | 57329 | 2023-05-04 17:33:13 |
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| bhe-20230331_lab.xml | 509157 | 2023-05-04 17:33:13 |
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| bhe-ex31_2.htm | 19464 | 2023-05-04 17:33:13 |
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| bhe-ex32_2.htm | 10033 | 2023-05-04 17:33:13 |
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| report.css | 2767 | 2023-05-04 17:33:13 |
| Show.js | 1085 | 2023-05-04 17:33:13 |