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| 0000009984-22-000075.txt | 2022-05-02 12:40:59 | |
 0000009984-22-000075-xbrl.zip | 789635 | 2022-05-02 12:40:59 |
| b-20220331.htm | 1397898 | 2022-05-02 12:40:59 |
| b-20220331.xsd | 44500 | 2022-05-02 12:40:59 |
| b-20220331_cal.xml | 64821 | 2022-05-02 12:40:59 |
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| b-20220331_htm.xml | 1417576 | 2022-05-02 12:40:59 |
| b-20220331_lab.xml | 555191 | 2022-05-02 12:40:59 |
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| bex3203312022.htm | 5174 | 2022-05-02 12:40:59 |
| FilingSummary.xml | 32068 | 2022-05-02 12:40:59 |
| Financial_Report.xlsx | 79330 | 2022-05-02 12:40:59 |
 image.jpg | 9761 | 2022-05-02 12:40:59 |
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| report.css | 2767 | 2022-05-02 12:40:59 |
| Show.js | 1085 | 2022-05-02 12:40:59 |