Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-20-023173-index-headers.html | 2020-11-09 13:37:17 | |
| 0001437749-20-023173-index.html | 2020-11-09 13:37:17 | |
| 0001437749-20-023173.txt | 2020-11-09 13:37:17 | |
 0001437749-20-023173-xbrl.zip | 123738 | 2020-11-09 13:37:17 |
| ex_201438.htm | 18701 | 2020-11-09 13:37:17 |
| ex_201439.htm | 18928 | 2020-11-09 13:37:17 |
| ex_201440.htm | 7205 | 2020-11-09 13:37:17 |
| ex_201441.htm | 7297 | 2020-11-09 13:37:17 |
| FilingSummary.xml | 27032 | 2020-11-09 13:37:17 |
| Financial_Report.xlsx | 48004 | 2020-11-09 13:37:17 |
| MetaLinks.json | 383361 | 2020-11-09 13:37:17 |
| R1.htm | 52465 | 2020-11-09 13:37:17 |
| R10.htm | 9329 | 2020-11-09 13:37:17 |
| R11.htm | 28380 | 2020-11-09 13:37:17 |
| R12.htm | 15945 | 2020-11-09 13:37:17 |
| R13.htm | 7887 | 2020-11-09 13:37:17 |
| R14.htm | 42084 | 2020-11-09 13:37:17 |
| R15.htm | 26488 | 2020-11-09 13:37:17 |
| R16.htm | 31385 | 2020-11-09 13:37:17 |
| R17.htm | 9470 | 2020-11-09 13:37:17 |
| R18.htm | 25388 | 2020-11-09 13:37:17 |
| R19.htm | 37245 | 2020-11-09 13:37:17 |
| R2.htm | 82150 | 2020-11-09 13:37:17 |
| R20.htm | 23445 | 2020-11-09 13:37:17 |
| R21.htm | 15396 | 2020-11-09 13:37:17 |
| R22.htm | 37423 | 2020-11-09 13:37:17 |
| R23.htm | 20123 | 2020-11-09 13:37:17 |
| R24.htm | 20343 | 2020-11-09 13:37:17 |
| R25.htm | 13253 | 2020-11-09 13:37:17 |
| R26.htm | 18819 | 2020-11-09 13:37:17 |
| R27.htm | 14093 | 2020-11-09 13:37:17 |
| R28.htm | 20771 | 2020-11-09 13:37:17 |
| R29.htm | 23744 | 2020-11-09 13:37:17 |
| R3.htm | 13428 | 2020-11-09 13:37:17 |
| R30.htm | 12432 | 2020-11-09 13:37:17 |
| R31.htm | 4046 | 2020-11-09 13:37:17 |
| R32.htm | 5754 | 2020-11-09 13:37:17 |
| R33.htm | 5227 | 2020-11-09 13:37:17 |
| R34.htm | 12194 | 2020-11-09 13:37:17 |
| R35.htm | 37899 | 2020-11-09 13:37:17 |
| R36.htm | 3428 | 2020-11-09 13:37:17 |
| R37.htm | 29065 | 2020-11-09 13:37:17 |
| R38.htm | 19256 | 2020-11-09 13:37:17 |
| R39.htm | 33792 | 2020-11-09 13:37:17 |
| R4.htm | 53399 | 2020-11-09 13:37:17 |
| R40.htm | 9389 | 2020-11-09 13:37:17 |
| R5.htm | 18552 | 2020-11-09 13:37:17 |
| R6.htm | 34239 | 2020-11-09 13:37:17 |
| R7.htm | 70434 | 2020-11-09 13:37:17 |
| R8.htm | 25177 | 2020-11-09 13:37:17 |
| R9.htm | 42149 | 2020-11-09 13:37:17 |
| report.css | 2767 | 2020-11-09 13:37:17 |
| sfe-20200930.xsd | 40632 | 2020-11-09 13:37:17 |
| sfe-20200930_cal.xml | 26247 | 2020-11-09 13:37:17 |
| sfe-20200930_def.xml | 242273 | 2020-11-09 13:37:17 |
| sfe-20200930_lab.xml | 210197 | 2020-11-09 13:37:17 |
| sfe-20200930_pre.xml | 264672 | 2020-11-09 13:37:17 |
| sfe20200930_10q.htm | 1035538 | 2020-11-09 13:37:17 |
| sfe20200930_10q_htm.xml | 598226 | 2020-11-09 13:37:17 |
| Show.js | 1085 | 2020-11-09 13:37:17 |