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| 0000768835-16-000149-index.html | 2016-09-07 16:08:56 | |
| 0000768835-16-000149.txt | 2016-09-07 16:08:56 | |
 0000768835-16-000149-xbrl.zip | 167076 | 2016-09-07 16:08:56 |
| big-20160730.xml | 939814 | 2016-09-07 16:08:56 |
| big-20160730.xsd | 33308 | 2016-09-07 16:08:56 |
| big-20160730_cal.xml | 67598 | 2016-09-07 16:08:56 |
| big-20160730_def.xml | 278088 | 2016-09-07 16:08:56 |
| big-20160730_lab.xml | 599364 | 2016-09-07 16:08:56 |
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| big-2016730x10q.htm | 926718 | 2016-09-07 16:08:56 |
| big-2016730xex311.htm | 14144 | 2016-09-07 16:08:56 |
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| big-2016730xex321.htm | 7021 | 2016-09-07 16:08:56 |
| big-2016730xex322.htm | 7125 | 2016-09-07 16:08:56 |
| FilingSummary.xml | 26124 | 2016-09-07 16:08:56 |
| Financial_Report.xlsx | 59098 | 2016-09-07 16:08:56 |
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| R9.htm | 81990 | 2016-09-07 16:08:56 |
| report.css | 2767 | 2016-09-07 16:08:56 |
| Show.js | 1410 | 2016-09-07 16:08:56 |