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| 0000768835-19-000073.txt | 2019-09-11 16:09:24 | |
 0000768835-19-000073-xbrl.zip | 221457 | 2019-09-11 16:09:24 |
| big-20190803.xsd | 37105 | 2019-09-11 16:09:24 |
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| FilingSummary.xml | 27943 | 2019-09-11 16:09:24 |
| Financial_Report.xlsx | 60720 | 2019-09-11 16:09:24 |
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| report.css | 2767 | 2019-09-11 16:09:24 |
| Show.js | 1085 | 2019-09-11 16:09:24 |