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| 0000014930-21-000077-index.html | 2021-05-11 11:44:09 | |
| 0000014930-21-000077.txt | 2021-05-11 11:44:09 | |
 0000014930-21-000077-xbrl.zip | 325331 | 2021-05-11 11:44:09 |
| bc20210403ex311.htm | 11736 | 2021-05-11 11:44:09 |
| bc20210403ex312.htm | 12153 | 2021-05-11 11:44:09 |
| bc20210403ex321.htm | 5381 | 2021-05-11 11:44:09 |
| bc20210403ex322.htm | 5439 | 2021-05-11 11:44:09 |
| bcorp-20210403.htm | 1985662 | 2021-05-11 11:44:09 |
| bcorp-20210403.xsd | 41177 | 2021-05-11 11:44:09 |
| bcorp-20210403_cal.xml | 86809 | 2021-05-11 11:44:09 |
| bcorp-20210403_def.xml | 261691 | 2021-05-11 11:44:09 |
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| bcorp-20210403_htm.xml | 1913286 | 2021-05-11 11:44:09 |
| bcorp-20210403_lab.xml | 619603 | 2021-05-11 11:44:09 |
| bcorp-20210403_pre.xml | 415623 | 2021-05-11 11:44:09 |
| FilingSummary.xml | 32615 | 2021-05-11 11:44:09 |
| Financial_Report.xlsx | 79856 | 2021-05-11 11:44:09 |
| MetaLinks.json | 629407 | 2021-05-11 11:44:09 |
| R1.htm | 66893 | 2021-05-11 11:44:09 |
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| report.css | 2767 | 2021-05-11 11:44:09 |
| Show.js | 1085 | 2021-05-11 11:44:09 |