Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000891092-20-003257-index-headers.html | 2020-03-20 12:40:07 | |
| 0000891092-20-003257-index.html | 2020-03-20 12:40:07 | |
| 0000891092-20-003257.txt | 2020-03-20 12:40:07 | |
 0000891092-20-003257-xbrl.zip | 124990 | 2020-03-20 12:40:07 |
 BarChart1.png | 19054 | 2020-03-20 12:40:07 |
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| bbht-20200228.xml | 288638 | 2020-03-20 12:40:07 |
| bbht-20200228.xsd | 20562 | 2020-03-20 12:40:07 |
| bbht-20200228_cal.xml | 13284 | 2020-03-20 12:40:07 |
| bbht-20200228_def.xml | 763755 | 2020-03-20 12:40:07 |
| bbht-20200228_lab.xml | 164244 | 2020-03-20 12:40:07 |
| bbht-20200228_pre.xml | 786465 | 2020-03-20 12:40:07 |
| e8712-485bpos.htm | 19285 | 2020-03-20 12:40:07 |
| FilingSummary.xml | 10747 | 2020-03-20 12:40:07 |
| R1.htm | 48309 | 2020-03-20 12:40:07 |
| R10.htm | 111938 | 2020-03-20 12:40:07 |
| R11.htm | 186997 | 2020-03-20 12:40:07 |
| R12.htm | 113977 | 2020-03-20 12:40:07 |
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| R15.htm | 153277 | 2020-03-20 12:40:07 |
| R2.htm | 75844 | 2020-03-20 12:40:07 |
| R23.htm | 18240 | 2020-03-20 12:40:07 |
| R3.htm | 115132 | 2020-03-20 12:40:07 |
| R4.htm | 115210 | 2020-03-20 12:40:07 |
| R5.htm | 198625 | 2020-03-20 12:40:07 |
| R6.htm | 113858 | 2020-03-20 12:40:07 |
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| R8.htm | 127879 | 2020-03-20 12:40:07 |
| R9.htm | 207482 | 2020-03-20 12:40:07 |
| report.css | 2767 | 2020-03-20 12:40:07 |
| Show.js | 1085 | 2020-03-20 12:40:07 |