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| 0001477932-18-001732-index.html | 2018-04-11 13:23:49 | |
| 0001477932-18-001732.txt | 2018-04-11 13:23:49 | |
 0001477932-18-001732-xbrl.zip | 43490 | 2018-04-11 13:23:49 |
| FilingSummary.xml | 15797 | 2018-04-11 13:23:49 |
| Financial_Report.xlsx | 31803 | 2018-04-11 13:23:49 |
| R1.htm | 28232 | 2018-04-11 13:23:49 |
| R10.htm | 4982 | 2018-04-11 13:23:49 |
| R11.htm | 7666 | 2018-04-11 13:23:49 |
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| R4.htm | 36389 | 2018-04-11 13:23:49 |
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| R6.htm | 45225 | 2018-04-11 13:23:49 |
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| R8.htm | 32251 | 2018-04-11 13:23:49 |
| R9.htm | 7046 | 2018-04-11 13:23:49 |
| report.css | 2767 | 2018-04-11 13:23:49 |
| sfiv-20171231.xml | 136419 | 2018-04-11 13:23:49 |
| sfiv-20171231.xsd | 23160 | 2018-04-11 13:23:49 |
| sfiv-20171231_cal.xml | 25395 | 2018-04-11 13:23:49 |
| sfiv-20171231_def.xml | 45047 | 2018-04-11 13:23:49 |
| sfiv-20171231_lab.xml | 121699 | 2018-04-11 13:23:49 |
| sfiv-20171231_pre.xml | 102456 | 2018-04-11 13:23:49 |
| sfiv_10k.htm | 300109 | 2018-04-11 13:23:49 |
| sfiv_ex311.htm | 7632 | 2018-04-11 13:23:49 |
| sfiv_ex321.htm | 2580 | 2018-04-11 13:23:49 |
| Show.js | 1410 | 2018-04-11 13:23:49 |