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| 0001564590-21-025303-index.html | 2021-05-07 07:16:31 | |
| 0001564590-21-025303.txt | 2021-05-07 07:16:31 | |
 0001564590-21-025303-xbrl.zip | 99490 | 2021-05-07 07:16:31 |
| FilingSummary.xml | 29839 | 2021-05-07 07:16:31 |
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| R10.htm | 110407 | 2021-05-07 07:16:31 |
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| R9.htm | 28548 | 2021-05-07 07:16:31 |
| report.css | 2767 | 2021-05-07 07:16:31 |
| Show.js | 1085 | 2021-05-07 07:16:31 |
| srra-10q_20210331.htm | 1983431 | 2021-05-07 07:16:31 |
| srra-20210331.xml | 1128270 | 2021-05-07 07:16:31 |
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| srra-ex311_6.htm | 10029 | 2021-05-07 07:16:31 |
| srra-ex312_7.htm | 10032 | 2021-05-07 07:16:31 |
| srra-ex321_8.htm | 7470 | 2021-05-07 07:16:31 |
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