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|---|---|---|
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| 0000768835-16-000121-index.html | 2016-06-08 16:03:40 | |
| 0000768835-16-000121.txt | 2016-06-08 16:03:40 | |
 0000768835-16-000121-xbrl.zip | 155617 | 2016-06-08 16:03:40 |
| big-20160430.xml | 721145 | 2016-06-08 16:03:40 |
| big-20160430.xsd | 33303 | 2016-06-08 16:03:40 |
| big-20160430_cal.xml | 67073 | 2016-06-08 16:03:40 |
| big-20160430_def.xml | 278983 | 2016-06-08 16:03:40 |
| big-20160430_lab.xml | 595695 | 2016-06-08 16:03:40 |
| big-20160430_pre.xml | 335305 | 2016-06-08 16:03:40 |
| big-2016430x10q.htm | 737073 | 2016-06-08 16:03:40 |
| big-2016430xex311.htm | 14435 | 2016-06-08 16:03:40 |
| big-2016430xex312.htm | 14628 | 2016-06-08 16:03:40 |
| big-2016430xex321.htm | 7023 | 2016-06-08 16:03:40 |
| big-2016430xex322.htm | 7127 | 2016-06-08 16:03:40 |
| FilingSummary.xml | 26365 | 2016-06-08 16:03:40 |
| Financial_Report.xlsx | 56253 | 2016-06-08 16:03:40 |
| R1.htm | 25895 | 2016-06-08 16:03:40 |
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| R9.htm | 79392 | 2016-06-08 16:03:40 |
| report.css | 2767 | 2016-06-08 16:03:40 |
| Show.js | 1410 | 2016-06-08 16:03:40 |