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| 0000768835-20-000033-index.html | 2020-03-31 16:05:20 | |
| 0000768835-20-000033.txt | 2020-03-31 16:05:20 | |
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| big-20200201.xsd | 50080 | 2020-03-31 16:05:20 |
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| big-202021xex321.htm | 6984 | 2020-03-31 16:05:20 |
| big-202021xex322.htm | 7523 | 2020-03-31 16:05:20 |
 bigsp2019.gif | 11157 | 2020-03-31 16:05:20 |
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| Financial_Report.xlsx | 91499 | 2020-03-31 16:05:20 |
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| report.css | 2767 | 2020-03-31 16:05:20 |
| Show.js | 1085 | 2020-03-31 16:05:20 |