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| 0001564590-17-008205-index.html | 2017-05-03 06:05:16 | |
| 0001564590-17-008205.txt | 2017-05-03 06:05:16 | |
 0001564590-17-008205-xbrl.zip | 250576 | 2017-05-03 06:05:16 |
| cstr-10q_20170331.htm | 4700772 | 2017-05-03 06:05:16 |
| cstr-20170331.xml | 6887123 | 2017-05-03 06:05:16 |
| cstr-20170331.xsd | 64814 | 2017-05-03 06:05:16 |
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| cstr-20170331_lab.xml | 592745 | 2017-05-03 06:05:16 |
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| cstr-ex322_6.htm | 7941 | 2017-05-03 06:05:16 |
| FilingSummary.xml | 49925 | 2017-05-03 06:05:16 |
| Financial_Report.xlsx | 92766 | 2017-05-03 06:05:16 |
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| report.css | 2767 | 2017-05-03 06:05:16 |
| Show.js | 1410 | 2017-05-03 06:05:16 |