Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001464413-21-000202-index-headers.html | 2021-09-23 12:22:30 | |
| 0001464413-21-000202-index.html | 2021-09-23 12:22:30 | |
| 0001464413-21-000202.txt | 2021-09-23 12:22:30 | |
 0001464413-21-000202-xbrl.zip | 175973 | 2021-09-23 12:22:30 |
 BarChart1.png | 11840 | 2021-09-23 12:22:30 |
 BarChart2.png | 14023 | 2021-09-23 12:22:30 |
 BarChart3.png | 13230 | 2021-09-23 12:22:30 |
 BarChart4.png | 15724 | 2021-09-23 12:22:30 |
 BarChart5.png | 12959 | 2021-09-23 12:22:30 |
 BarChart6.png | 13361 | 2021-09-23 12:22:30 |
| ck0001464413-20210902.xml | 418432 | 2021-09-23 12:22:30 |
| ck0001464413-20210902.xsd | 26922 | 2021-09-23 12:22:30 |
| ck0001464413-20210902_cal.xml | 4985 | 2021-09-23 12:22:30 |
| ck0001464413-20210902_def.xml | 768680 | 2021-09-23 12:22:30 |
| ck0001464413-20210902_lab.xml | 198983 | 2021-09-23 12:22:30 |
| ck0001464413-20210902_pre.xml | 831576 | 2021-09-23 12:22:30 |
| FilingSummary.xml | 9782 | 2021-09-23 12:22:30 |
| n1axbrl0921etfs.htm | 31100 | 2021-09-23 12:22:30 |
| R1.htm | 35443 | 2021-09-23 12:22:30 |
| R15.htm | 218898 | 2021-09-23 12:22:30 |
| R16.htm | 135736 | 2021-09-23 12:22:30 |
| R2.htm | 124650 | 2021-09-23 12:22:30 |
| R22.htm | 223032 | 2021-09-23 12:22:30 |
| R23.htm | 146557 | 2021-09-23 12:22:30 |
| R29.htm | 237785 | 2021-09-23 12:22:30 |
| R30.htm | 131115 | 2021-09-23 12:22:30 |
| R36.htm | 223198 | 2021-09-23 12:22:30 |
| R37.htm | 129169 | 2021-09-23 12:22:30 |
| R43.htm | 218462 | 2021-09-23 12:22:30 |
| R44.htm | 3938 | 2021-09-23 12:22:30 |
| R8.htm | 211569 | 2021-09-23 12:22:30 |
| R9.htm | 129539 | 2021-09-23 12:22:30 |
| report.css | 2767 | 2021-09-23 12:22:30 |
| Show.js | 1085 | 2021-09-23 12:22:30 |