Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001109189-17-000029-index-headers.html | 2017-03-31 17:14:54 | |
| 0001109189-17-000029-index.html | 2017-03-31 17:14:54 | |
| 0001109189-17-000029.txt | 2017-03-31 17:14:54 | |
 0001109189-17-000029-xbrl.zip | 435349 | 2017-03-31 17:14:54 |
| bas-20161231.xml | 3495803 | 2017-03-31 17:14:54 |
| bas-20161231.xsd | 107363 | 2017-03-31 17:14:54 |
| bas-20161231xex121.htm | 38615 | 2017-03-31 17:14:54 |
| bas-20161231xex211.htm | 16587 | 2017-03-31 17:14:54 |
| bas-20161231xex231.htm | 3290 | 2017-03-31 17:14:54 |
| bas-20161231xex311.htm | 8726 | 2017-03-31 17:14:54 |
| bas-20161231xex312.htm | 8666 | 2017-03-31 17:14:54 |
| bas-20161231xex321.htm | 5232 | 2017-03-31 17:14:54 |
| bas-20161231xex322.htm | 5184 | 2017-03-31 17:14:54 |
| bas-20161231_cal.xml | 222298 | 2017-03-31 17:14:54 |
| bas-20161231_def.xml | 722115 | 2017-03-31 17:14:54 |
| bas-20161231_lab.xml | 1331374 | 2017-03-31 17:14:54 |
| bas-20161231_pre.xml | 880008 | 2017-03-31 17:14:54 |
| bas_123116x10kdocument.htm | 2750053 | 2017-03-31 17:14:54 |
| ex1043dipcreditagreement.htm | 914795 | 2017-03-31 17:14:54 |
| FilingSummary.xml | 62503 | 2017-03-31 17:14:54 |
| Financial_Report.xlsx | 148212 | 2017-03-31 17:14:54 |
 performancegrapha06.jpg | 29334 | 2017-03-31 17:14:54 |
| R1.htm | 29978 | 2017-03-31 17:14:54 |
| R10.htm | 313549 | 2017-03-31 17:14:54 |
| R11.htm | 313503 | 2017-03-31 17:14:54 |
| R12.htm | 121832 | 2017-03-31 17:14:54 |
| R13.htm | 73574 | 2017-03-31 17:14:54 |
| R14.htm | 20305 | 2017-03-31 17:14:54 |
| R15.htm | 106315 | 2017-03-31 17:14:54 |
| R16.htm | 16170 | 2017-03-31 17:14:54 |
| R17.htm | 25330 | 2017-03-31 17:14:54 |
| R18.htm | 31902 | 2017-03-31 17:14:54 |
| R19.htm | 20292 | 2017-03-31 17:14:54 |
| R2.htm | 91202 | 2017-03-31 17:14:54 |
| R20.htm | 20288 | 2017-03-31 17:14:54 |
| R21.htm | 138818 | 2017-03-31 17:14:54 |
| R22.htm | 6587 | 2017-03-31 17:14:54 |
| R23.htm | 6899 | 2017-03-31 17:14:54 |
| R24.htm | 47230 | 2017-03-31 17:14:54 |
| R25.htm | 17333 | 2017-03-31 17:14:54 |
| R26.htm | 169979 | 2017-03-31 17:14:54 |
| R27.htm | 98735 | 2017-03-31 17:14:54 |
| R28.htm | 7938 | 2017-03-31 17:14:54 |
| R29.htm | 119415 | 2017-03-31 17:14:54 |
| R3.htm | 40133 | 2017-03-31 17:14:54 |
| R30.htm | 13640 | 2017-03-31 17:14:54 |
| R31.htm | 41748 | 2017-03-31 17:14:54 |
| R32.htm | 103482 | 2017-03-31 17:14:54 |
| R33.htm | 419346 | 2017-03-31 17:14:54 |
| R34.htm | 17822 | 2017-03-31 17:14:54 |
| R35.htm | 84254 | 2017-03-31 17:14:54 |
| R36.htm | 97458 | 2017-03-31 17:14:54 |
| R37.htm | 15237 | 2017-03-31 17:14:54 |
| R38.htm | 75524 | 2017-03-31 17:14:54 |
| R39.htm | 12969 | 2017-03-31 17:14:54 |
| R4.htm | 71615 | 2017-03-31 17:14:54 |
| R40.htm | 31392 | 2017-03-31 17:14:54 |
| R41.htm | 115781 | 2017-03-31 17:14:54 |
| R42.htm | 47646 | 2017-03-31 17:14:54 |
| R43.htm | 15109 | 2017-03-31 17:14:54 |
| R44.htm | 165521 | 2017-03-31 17:14:54 |
| R45.htm | 97985 | 2017-03-31 17:14:54 |
| R46.htm | 116991 | 2017-03-31 17:14:54 |
| R47.htm | 20314 | 2017-03-31 17:14:54 |
| R48.htm | 63686 | 2017-03-31 17:14:54 |
| R49.htm | 18305 | 2017-03-31 17:14:54 |
| R5.htm | 6051 | 2017-03-31 17:14:54 |
| R50.htm | 17406 | 2017-03-31 17:14:54 |
| R51.htm | 246735 | 2017-03-31 17:14:54 |
| R52.htm | 33732 | 2017-03-31 17:14:54 |
| R53.htm | 22997 | 2017-03-31 17:14:54 |
| R54.htm | 25295 | 2017-03-31 17:14:54 |
| R55.htm | 14716 | 2017-03-31 17:14:54 |
| R56.htm | 28484 | 2017-03-31 17:14:54 |
| R57.htm | 64587 | 2017-03-31 17:14:54 |
| R58.htm | 10371 | 2017-03-31 17:14:54 |
| R59.htm | 23913 | 2017-03-31 17:14:54 |
| R6.htm | 33728 | 2017-03-31 17:14:54 |
| R60.htm | 28732 | 2017-03-31 17:14:54 |
| R61.htm | 39598 | 2017-03-31 17:14:54 |
| R62.htm | 36070 | 2017-03-31 17:14:54 |
| R63.htm | 11508 | 2017-03-31 17:14:54 |
| R64.htm | 26365 | 2017-03-31 17:14:54 |
| R65.htm | 17245 | 2017-03-31 17:14:54 |
| R66.htm | 58221 | 2017-03-31 17:14:54 |
| R67.htm | 6460 | 2017-03-31 17:14:54 |
| R68.htm | 31506 | 2017-03-31 17:14:54 |
| R69.htm | 23428 | 2017-03-31 17:14:54 |
| R7.htm | 103161 | 2017-03-31 17:14:54 |
| R70.htm | 34387 | 2017-03-31 17:14:54 |
| R71.htm | 91706 | 2017-03-31 17:14:54 |
| R72.htm | 35248 | 2017-03-31 17:14:54 |
| R73.htm | 17803 | 2017-03-31 17:14:54 |
| R74.htm | 7293 | 2017-03-31 17:14:54 |
| R75.htm | 38776 | 2017-03-31 17:14:54 |
| R76.htm | 19443 | 2017-03-31 17:14:54 |
| R77.htm | 33342 | 2017-03-31 17:14:54 |
| R78.htm | 54768 | 2017-03-31 17:14:54 |
| R79.htm | 37449 | 2017-03-31 17:14:54 |
| R8.htm | 8379 | 2017-03-31 17:14:54 |
| R80.htm | 133994 | 2017-03-31 17:14:54 |
| R81.htm | 64105 | 2017-03-31 17:14:54 |
| R82.htm | 31648 | 2017-03-31 17:14:54 |
| R83.htm | 22425 | 2017-03-31 17:14:54 |
| R84.htm | 10428 | 2017-03-31 17:14:54 |
| R85.htm | 24046 | 2017-03-31 17:14:54 |
| R86.htm | 11882 | 2017-03-31 17:14:54 |
| R87.htm | 6886 | 2017-03-31 17:14:54 |
| R88.htm | 4648 | 2017-03-31 17:14:54 |
| R89.htm | 78171 | 2017-03-31 17:14:54 |
| R9.htm | 5996 | 2017-03-31 17:14:54 |
| R90.htm | 23097 | 2017-03-31 17:14:54 |
| R91.htm | 38110 | 2017-03-31 17:14:54 |
| R92.htm | 14391 | 2017-03-31 17:14:54 |
| R93.htm | 23968 | 2017-03-31 17:14:54 |
| R94.htm | 25279 | 2017-03-31 17:14:54 |
| R95.htm | 26660 | 2017-03-31 17:14:54 |
| R96.htm | 55610 | 2017-03-31 17:14:54 |
| R97.htm | 33173 | 2017-03-31 17:14:54 |
| R98.htm | 18229 | 2017-03-31 17:14:54 |
| R9999.htm | 18005 | 2017-03-31 17:14:54 |
| report.css | 2768 | 2017-03-31 17:14:54 |
| Show.js | 1411 | 2017-03-31 17:14:54 |