Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-21-041606-index-headers.html | 2021-08-05 16:19:13 | |
| 0001564590-21-041606-index.html | 2021-08-05 16:19:13 | |
| 0001564590-21-041606.txt | 2021-08-05 16:19:13 | |
 0001564590-21-041606-xbrl.zip | 229112 | 2021-08-05 16:19:13 |
| FilingSummary.xml | 30673 | 2021-08-05 16:19:13 |
| Financial_Report.xlsx | 65596 | 2021-08-05 16:19:13 |
| MetaLinks.json | 505335 | 2021-08-05 16:19:13 |
| R1.htm | 52214 | 2021-08-05 16:19:13 |
| R10.htm | 112206 | 2021-08-05 16:19:13 |
| R11.htm | 126369 | 2021-08-05 16:19:13 |
| R12.htm | 66042 | 2021-08-05 16:19:13 |
| R13.htm | 15553 | 2021-08-05 16:19:13 |
| R14.htm | 43300 | 2021-08-05 16:19:13 |
| R15.htm | 168366 | 2021-08-05 16:19:13 |
| R16.htm | 8134 | 2021-08-05 16:19:13 |
| R17.htm | 13234 | 2021-08-05 16:19:13 |
| R18.htm | 27091 | 2021-08-05 16:19:13 |
| R19.htm | 109849 | 2021-08-05 16:19:13 |
| R2.htm | 61339 | 2021-08-05 16:19:13 |
| R20.htm | 131283 | 2021-08-05 16:19:13 |
| R21.htm | 65442 | 2021-08-05 16:19:13 |
| R22.htm | 38236 | 2021-08-05 16:19:13 |
| R23.htm | 160285 | 2021-08-05 16:19:13 |
| R24.htm | 5660 | 2021-08-05 16:19:13 |
| R25.htm | 14915 | 2021-08-05 16:19:13 |
| R26.htm | 6924 | 2021-08-05 16:19:13 |
| R27.htm | 13690 | 2021-08-05 16:19:13 |
| R28.htm | 21663 | 2021-08-05 16:19:13 |
| R29.htm | 6245 | 2021-08-05 16:19:13 |
| R3.htm | 18958 | 2021-08-05 16:19:13 |
| R30.htm | 12108 | 2021-08-05 16:19:13 |
| R31.htm | 12548 | 2021-08-05 16:19:13 |
| R32.htm | 14811 | 2021-08-05 16:19:13 |
| R33.htm | 16838 | 2021-08-05 16:19:13 |
| R34.htm | 5080 | 2021-08-05 16:19:13 |
| R35.htm | 17981 | 2021-08-05 16:19:13 |
| R36.htm | 16880 | 2021-08-05 16:19:13 |
| R37.htm | 11827 | 2021-08-05 16:19:13 |
| R38.htm | 18350 | 2021-08-05 16:19:13 |
| R39.htm | 39071 | 2021-08-05 16:19:13 |
| R4.htm | 42764 | 2021-08-05 16:19:13 |
| R40.htm | 83550 | 2021-08-05 16:19:13 |
| R41.htm | 18457 | 2021-08-05 16:19:13 |
| R42.htm | 10854 | 2021-08-05 16:19:13 |
| R43.htm | 18763 | 2021-08-05 16:19:13 |
| R44.htm | 62099 | 2021-08-05 16:19:13 |
| R45.htm | 64737 | 2021-08-05 16:19:13 |
| R46.htm | 4846 | 2021-08-05 16:19:13 |
| R5.htm | 65475 | 2021-08-05 16:19:13 |
| R6.htm | 71395 | 2021-08-05 16:19:13 |
| R7.htm | 11777 | 2021-08-05 16:19:13 |
| R8.htm | 10579 | 2021-08-05 16:19:13 |
| R9.htm | 29394 | 2021-08-05 16:19:13 |
| report.css | 2767 | 2021-08-05 16:19:13 |
| Show.js | 1085 | 2021-08-05 16:19:13 |
| srra-10q_20210630.htm | 2494633 | 2021-08-05 16:19:13 |
| srra-10q_20210630_htm.xml | 1335831 | 2021-08-05 16:19:13 |
| srra-20210630.xsd | 48412 | 2021-08-05 16:19:13 |
| srra-20210630_cal.xml | 42424 | 2021-08-05 16:19:13 |
| srra-20210630_def.xml | 147617 | 2021-08-05 16:19:13 |
| srra-20210630_lab.xml | 378110 | 2021-08-05 16:19:13 |
| srra-20210630_pre.xml | 272444 | 2021-08-05 16:19:13 |
| srra-ex311_9.htm | 9803 | 2021-08-05 16:19:13 |
| srra-ex312_8.htm | 9806 | 2021-08-05 16:19:13 |
| srra-ex321_7.htm | 7247 | 2021-08-05 16:19:13 |
| srra-ex322_6.htm | 7310 | 2021-08-05 16:19:13 |