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|---|---|---|
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| 0000950170-22-002119-index.html | 2022-02-25 17:21:41 | |
| 0000950170-22-002119.txt | 2022-02-25 17:21:41 | |
 0000950170-22-002119-xbrl.zip | 429673 | 2022-02-25 17:21:41 |
| bhe-20211231.htm | 4593304 | 2022-02-25 17:21:41 |
| bhe-20211231.xsd | 70856 | 2022-02-25 17:21:41 |
| bhe-20211231_cal.xml | 88063 | 2022-02-25 17:21:41 |
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| bhe-20211231_lab.xml | 688675 | 2022-02-25 17:21:41 |
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| bhe-ex23.htm | 3029 | 2022-02-25 17:21:41 |
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| bhe-ex31_2.htm | 18609 | 2022-02-25 17:21:41 |
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| Financial_Report.xlsx | 135710 | 2022-02-25 17:21:41 |
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| R9.htm | 25374 | 2022-02-25 17:21:41 |
| report.css | 2768 | 2022-02-25 17:21:41 |
| Show.js | 1086 | 2022-02-25 17:21:41 |