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| 0001564590-19-014795-index.html | 2019-05-01 16:02:03 | |
| 0001564590-19-014795.txt | 2019-05-01 16:02:03 | |
 0001564590-19-014795-xbrl.zip | 253554 | 2019-05-01 16:02:03 |
| cstr-10q_20190331.htm | 4771010 | 2019-05-01 16:02:03 |
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| Financial_Report.xlsx | 95003 | 2019-05-01 16:02:03 |
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| report.css | 2767 | 2019-05-01 16:02:03 |
| Show.js | 1085 | 2019-05-01 16:02:03 |