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| 0000913142-19-000008-index.html | 2019-05-06 16:31:53 | |
| 0000913142-19-000008.txt | 2019-05-06 16:31:53 | |
 0000913142-19-000008-xbrl.zip | 219555 | 2019-05-06 16:31:53 |
| bdc-03312019x10q.htm | 1466792 | 2019-05-06 16:31:53 |
| bdc-03312019x10q_htm.xml | 1491910 | 2019-05-06 16:31:53 |
| bdc-20190331.xsd | 48707 | 2019-05-06 16:31:53 |
| bdc-20190331_cal.xml | 112717 | 2019-05-06 16:31:53 |
| bdc-20190331_def.xml | 231463 | 2019-05-06 16:31:53 |
| bdc-20190331_lab.xml | 646937 | 2019-05-06 16:31:53 |
| bdc-20190331_pre.xml | 401247 | 2019-05-06 16:31:53 |
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| ex321.htm | 5076 | 2019-05-06 16:31:53 |
| ex322.htm | 5111 | 2019-05-06 16:31:53 |
| FilingSummary.xml | 41995 | 2019-05-06 16:31:53 |
| Financial_Report.xlsx | 79262 | 2019-05-06 16:31:53 |
| MetaLinks.json | 598010 | 2019-05-06 16:31:53 |
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| report.css | 2767 | 2019-05-06 16:31:53 |
| Show.js | 1085 | 2019-05-06 16:31:53 |