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| 0000768835-16-000162-index.html | 2016-12-07 16:05:11 | |
| 0000768835-16-000162.txt | 2016-12-07 16:05:11 | |
 0000768835-16-000162-xbrl.zip | 169763 | 2016-12-07 16:05:11 |
| big-20161029.xml | 1019429 | 2016-12-07 16:05:11 |
| big-20161029.xsd | 33308 | 2016-12-07 16:05:11 |
| big-20161029x10q.htm | 955320 | 2016-12-07 16:05:11 |
| big-20161029x311.htm | 14142 | 2016-12-07 16:05:11 |
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| big-20161029xex321.htm | 7024 | 2016-12-07 16:05:11 |
| big-20161029xex322.htm | 7128 | 2016-12-07 16:05:11 |
| big-20161029_cal.xml | 69038 | 2016-12-07 16:05:11 |
| big-20161029_def.xml | 282397 | 2016-12-07 16:05:11 |
| big-20161029_lab.xml | 598113 | 2016-12-07 16:05:11 |
| big-20161029_pre.xml | 348706 | 2016-12-07 16:05:11 |
| FilingSummary.xml | 26124 | 2016-12-07 16:05:11 |
| Financial_Report.xlsx | 59986 | 2016-12-07 16:05:11 |
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| R9.htm | 82004 | 2016-12-07 16:05:11 |
| report.css | 2767 | 2016-12-07 16:05:11 |
| Show.js | 1410 | 2016-12-07 16:05:11 |