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| 0000090168-22-000010.txt | 2022-02-04 16:00:14 | |
 0000090168-22-000010-xbrl.zip | 173732 | 2022-02-04 16:00:14 |
| exhibit3112022q1.htm | 11095 | 2022-02-04 16:00:14 |
| exhibit3122022q1.htm | 11040 | 2022-02-04 16:00:14 |
| exhibit3212022q1.htm | 5927 | 2022-02-04 16:00:14 |
| exhibit3222022q1.htm | 6069 | 2022-02-04 16:00:14 |
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| R9.htm | 28450 | 2022-02-04 16:00:14 |
| report.css | 2767 | 2022-02-04 16:00:14 |
| Show.js | 1085 | 2022-02-04 16:00:14 |
| sif-20211231.htm | 865811 | 2022-02-04 16:00:14 |
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