Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000863436-20-000024-index-headers.html | 2020-08-05 17:54:42 | |
| 0000863436-20-000024-index.html | 2020-08-05 17:54:42 | |
| 0000863436-20-000024.txt | 2020-08-05 17:54:42 | |
 0000863436-20-000024-xbrl.zip | 241415 | 2020-08-05 17:54:42 |
| bhe-20200630.xsd | 49086 | 2020-08-05 17:54:42 |
| bhe-20200630_cal.xml | 87023 | 2020-08-05 17:54:42 |
| bhe-20200630_def.xml | 252247 | 2020-08-05 17:54:42 |
| bhe-20200630_lab.xml | 693481 | 2020-08-05 17:54:42 |
| bhe-20200630_pre.xml | 506784 | 2020-08-05 17:54:42 |
| bhe202010q2.htm | 2610515 | 2020-08-05 17:54:42 |
| bhe202010q2_htm.xml | 2859829 | 2020-08-05 17:54:42 |
| ex311.htm | 18689 | 2020-08-05 17:54:42 |
| ex312.htm | 18494 | 2020-08-05 17:54:42 |
| ex321.htm | 7003 | 2020-08-05 17:54:42 |
| ex322.htm | 7517 | 2020-08-05 17:54:42 |
| FilingSummary.xml | 46460 | 2020-08-05 17:54:42 |
| Financial_Report.xlsx | 102059 | 2020-08-05 17:54:42 |
| MetaLinks.json | 649003 | 2020-08-05 17:54:42 |
| R1.htm | 52215 | 2020-08-05 17:54:42 |
| R10.htm | 16782 | 2020-08-05 17:54:42 |
| R11.htm | 17609 | 2020-08-05 17:54:42 |
| R12.htm | 86843 | 2020-08-05 17:54:42 |
| R13.htm | 25975 | 2020-08-05 17:54:42 |
| R14.htm | 131185 | 2020-08-05 17:54:42 |
| R15.htm | 99245 | 2020-08-05 17:54:42 |
| R16.htm | 34728 | 2020-08-05 17:54:42 |
| R17.htm | 171000 | 2020-08-05 17:54:42 |
| R18.htm | 6558 | 2020-08-05 17:54:42 |
| R19.htm | 4943 | 2020-08-05 17:54:42 |
| R2.htm | 81809 | 2020-08-05 17:54:42 |
| R20.htm | 93528 | 2020-08-05 17:54:42 |
| R21.htm | 7419 | 2020-08-05 17:54:42 |
| R22.htm | 74309 | 2020-08-05 17:54:42 |
| R23.htm | 9310 | 2020-08-05 17:54:42 |
| R24.htm | 54547 | 2020-08-05 17:54:42 |
| R25.htm | 229942 | 2020-08-05 17:54:42 |
| R26.htm | 39577 | 2020-08-05 17:54:42 |
| R27.htm | 12903 | 2020-08-05 17:54:42 |
| R28.htm | 16140 | 2020-08-05 17:54:42 |
| R29.htm | 18643 | 2020-08-05 17:54:42 |
| R3.htm | 21894 | 2020-08-05 17:54:42 |
| R30.htm | 91601 | 2020-08-05 17:54:42 |
| R31.htm | 20051 | 2020-08-05 17:54:42 |
| R32.htm | 131148 | 2020-08-05 17:54:42 |
| R33.htm | 98580 | 2020-08-05 17:54:42 |
| R34.htm | 31798 | 2020-08-05 17:54:42 |
| R35.htm | 167115 | 2020-08-05 17:54:42 |
| R36.htm | 92158 | 2020-08-05 17:54:42 |
| R37.htm | 72375 | 2020-08-05 17:54:42 |
| R38.htm | 53712 | 2020-08-05 17:54:42 |
| R39.htm | 232458 | 2020-08-05 17:54:42 |
| R4.htm | 52056 | 2020-08-05 17:54:42 |
| R40.htm | 39079 | 2020-08-05 17:54:42 |
| R41.htm | 8392 | 2020-08-05 17:54:42 |
| R42.htm | 5055 | 2020-08-05 17:54:42 |
| R43.htm | 9048 | 2020-08-05 17:54:42 |
| R44.htm | 10753 | 2020-08-05 17:54:42 |
| R45.htm | 11246 | 2020-08-05 17:54:42 |
| R46.htm | 8776 | 2020-08-05 17:54:42 |
| R47.htm | 22901 | 2020-08-05 17:54:42 |
| R48.htm | 12880 | 2020-08-05 17:54:42 |
| R49.htm | 13402 | 2020-08-05 17:54:42 |
| R5.htm | 22348 | 2020-08-05 17:54:42 |
| R50.htm | 14450 | 2020-08-05 17:54:42 |
| R51.htm | 65565 | 2020-08-05 17:54:42 |
| R52.htm | 61457 | 2020-08-05 17:54:42 |
| R53.htm | 30848 | 2020-08-05 17:54:42 |
| R54.htm | 15637 | 2020-08-05 17:54:42 |
| R55.htm | 6587 | 2020-08-05 17:54:42 |
| R56.htm | 21175 | 2020-08-05 17:54:42 |
| R57.htm | 11041 | 2020-08-05 17:54:42 |
| R58.htm | 17138 | 2020-08-05 17:54:42 |
| R59.htm | 33941 | 2020-08-05 17:54:42 |
| R6.htm | 66803 | 2020-08-05 17:54:42 |
| R60.htm | 28350 | 2020-08-05 17:54:42 |
| R61.htm | 18302 | 2020-08-05 17:54:42 |
| R62.htm | 15795 | 2020-08-05 17:54:42 |
| R63.htm | 6577 | 2020-08-05 17:54:42 |
| R64.htm | 64799 | 2020-08-05 17:54:42 |
| R65.htm | 6034 | 2020-08-05 17:54:42 |
| R66.htm | 8011 | 2020-08-05 17:54:42 |
| R67.htm | 7000 | 2020-08-05 17:54:42 |
| R68.htm | 38324 | 2020-08-05 17:54:42 |
| R69.htm | 6254 | 2020-08-05 17:54:42 |
| R7.htm | 84025 | 2020-08-05 17:54:42 |
| R70.htm | 30138 | 2020-08-05 17:54:42 |
| R71.htm | 33519 | 2020-08-05 17:54:42 |
| R72.htm | 28083 | 2020-08-05 17:54:42 |
| R73.htm | 47690 | 2020-08-05 17:54:42 |
| R74.htm | 21834 | 2020-08-05 17:54:42 |
| R75.htm | 11920 | 2020-08-05 17:54:42 |
| R8.htm | 8373 | 2020-08-05 17:54:42 |
| R9.htm | 7036 | 2020-08-05 17:54:42 |
| report.css | 2767 | 2020-08-05 17:54:42 |
| Show.js | 1085 | 2020-08-05 17:54:42 |