Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000909832-16-000032-index-headers.html | 2016-10-11 19:26:22 | |
| 0000909832-16-000032-index.html | 2016-10-11 19:26:22 | |
| 0000909832-16-000032.txt | 2016-10-11 19:26:22 | |
 0000909832-16-000032-xbrl.zip | 246305 | 2016-10-11 19:26:22 |
| cost-20160828.xml | 2044349 | 2016-10-11 19:26:22 |
| cost-20160828.xsd | 52059 | 2016-10-11 19:26:22 |
| cost-20160828_cal.xml | 119728 | 2016-10-11 19:26:22 |
| cost-20160828_def.xml | 189637 | 2016-10-11 19:26:22 |
| cost-20160828_lab.xml | 759907 | 2016-10-11 19:26:22 |
| cost-20160828_pre.xml | 422144 | 2016-10-11 19:26:22 |
| cost10k82816.htm | 1929506 | 2016-10-11 19:26:22 |
| costex101910k82816.htm | 19948 | 2016-10-11 19:26:22 |
| costex105310k82816.htm | 14347 | 2016-10-11 19:26:22 |
| costex21110k82816.htm | 17344 | 2016-10-11 19:26:22 |
| costex23110k82816.htm | 3861 | 2016-10-11 19:26:22 |
| costex31110k82816.htm | 23872 | 2016-10-11 19:26:22 |
| costex32110k82816.htm | 12511 | 2016-10-11 19:26:22 |
| FilingSummary.xml | 37870 | 2016-10-11 19:26:22 |
| Financial_Report.xlsx | 98874 | 2016-10-11 19:26:22 |
| R1.htm | 29996 | 2016-10-11 19:26:22 |
| R10.htm | 65814 | 2016-10-11 19:26:22 |
| R11.htm | 37216 | 2016-10-11 19:26:22 |
| R12.htm | 60339 | 2016-10-11 19:26:22 |
| R13.htm | 30626 | 2016-10-11 19:26:22 |
| R14.htm | 21864 | 2016-10-11 19:26:22 |
| R15.htm | 37866 | 2016-10-11 19:26:22 |
| R16.htm | 120386 | 2016-10-11 19:26:22 |
| R17.htm | 20996 | 2016-10-11 19:26:22 |
| R18.htm | 14281 | 2016-10-11 19:26:22 |
| R19.htm | 90060 | 2016-10-11 19:26:22 |
| R2.htm | 91831 | 2016-10-11 19:26:22 |
| R20.htm | 198936 | 2016-10-11 19:26:22 |
| R21.htm | 173010 | 2016-10-11 19:26:22 |
| R22.htm | 41350 | 2016-10-11 19:26:22 |
| R23.htm | 62068 | 2016-10-11 19:26:22 |
| R24.htm | 31884 | 2016-10-11 19:26:22 |
| R25.htm | 49710 | 2016-10-11 19:26:22 |
| R26.htm | 26552 | 2016-10-11 19:26:22 |
| R27.htm | 14462 | 2016-10-11 19:26:22 |
| R28.htm | 29308 | 2016-10-11 19:26:22 |
| R29.htm | 117401 | 2016-10-11 19:26:22 |
| R3.htm | 19005 | 2016-10-11 19:26:22 |
| R30.htm | 20258 | 2016-10-11 19:26:22 |
| R31.htm | 88762 | 2016-10-11 19:26:22 |
| R32.htm | 198197 | 2016-10-11 19:26:22 |
| R33.htm | 93135 | 2016-10-11 19:26:22 |
| R34.htm | 13327 | 2016-10-11 19:26:22 |
| R35.htm | 12259 | 2016-10-11 19:26:22 |
| R36.htm | 19491 | 2016-10-11 19:26:22 |
| R37.htm | 37668 | 2016-10-11 19:26:22 |
| R38.htm | 5166 | 2016-10-11 19:26:22 |
| R39.htm | 35173 | 2016-10-11 19:26:22 |
| R4.htm | 66305 | 2016-10-11 19:26:22 |
| R40.htm | 27887 | 2016-10-11 19:26:22 |
| R41.htm | 46802 | 2016-10-11 19:26:22 |
| R42.htm | 12120 | 2016-10-11 19:26:22 |
| R43.htm | 19867 | 2016-10-11 19:26:22 |
| R44.htm | 51080 | 2016-10-11 19:26:22 |
| R45.htm | 46283 | 2016-10-11 19:26:22 |
| R46.htm | 10734 | 2016-10-11 19:26:22 |
| R47.htm | 21192 | 2016-10-11 19:26:22 |
| R48.htm | 10819 | 2016-10-11 19:26:22 |
| R49.htm | 45465 | 2016-10-11 19:26:22 |
| R5.htm | 16536 | 2016-10-11 19:26:22 |
| R50.htm | 23786 | 2016-10-11 19:26:22 |
| R51.htm | 9076 | 2016-10-11 19:26:22 |
| R52.htm | 28156 | 2016-10-11 19:26:22 |
| R53.htm | 11879 | 2016-10-11 19:26:22 |
| R54.htm | 37534 | 2016-10-11 19:26:22 |
| R55.htm | 41075 | 2016-10-11 19:26:22 |
| R56.htm | 21842 | 2016-10-11 19:26:22 |
| R57.htm | 15843 | 2016-10-11 19:26:22 |
| R58.htm | 17800 | 2016-10-11 19:26:22 |
| R59.htm | 7341 | 2016-10-11 19:26:22 |
| R6.htm | 68035 | 2016-10-11 19:26:22 |
| R60.htm | 40560 | 2016-10-11 19:26:22 |
| R61.htm | 16515 | 2016-10-11 19:26:22 |
| R62.htm | 75268 | 2016-10-11 19:26:22 |
| R7.htm | 88010 | 2016-10-11 19:26:22 |
| R8.htm | 4514 | 2016-10-11 19:26:22 |
| R9.htm | 99601 | 2016-10-11 19:26:22 |
| report.css | 2767 | 2016-10-11 19:26:22 |
| Show.js | 1410 | 2016-10-11 19:26:22 |