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| 0000863436-19-000014-index.html | 2019-05-08 12:14:59 | |
| 0000863436-19-000014.txt | 2019-05-08 12:14:59 | |
 0000863436-19-000014-xbrl.zip | 177919 | 2019-05-08 12:14:59 |
| bhe-20190331.xml | 1568916 | 2019-05-08 12:14:59 |
| bhe-20190331.xsd | 49646 | 2019-05-08 12:14:59 |
| bhe-20190331_cal.xml | 99958 | 2019-05-08 12:14:59 |
| bhe-20190331_def.xml | 265566 | 2019-05-08 12:14:59 |
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| ex31_1.htm | 15950 | 2019-05-08 12:14:59 |
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| ex32_1.htm | 6975 | 2019-05-08 12:14:59 |
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| FilingSummary.xml | 44093 | 2019-05-08 12:14:59 |
| Financial_Report.xlsx | 82992 | 2019-05-08 12:14:59 |
| form10q.htm | 1396441 | 2019-05-08 12:14:59 |
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| report.css | 2767 | 2019-05-08 12:14:59 |
| Show.js | 1085 | 2019-05-08 12:14:59 |