Parent Directory| Name | Size | Last Modified |
|---|---|---|
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| 0001410578-22-000504-index.html | 2022-03-25 11:13:27 | |
| 0001410578-22-000504.txt | 2022-03-25 11:13:27 | |
 0001410578-22-000504-xbrl.zip | 98843 | 2022-03-25 11:13:27 |
| FilingSummary.xml | 11010 | 2022-03-25 11:13:27 |
| Financial_Report.xlsx | 23827 | 2022-03-25 11:13:27 |
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| R1.htm | 65168 | 2022-03-25 11:13:27 |
| R10.htm | 7324 | 2022-03-25 11:13:27 |
| R11.htm | 13672 | 2022-03-25 11:13:27 |
| R12.htm | 19507 | 2022-03-25 11:13:27 |
| R13.htm | 23646 | 2022-03-25 11:13:27 |
| R14.htm | 11577 | 2022-03-25 11:13:27 |
| R15.htm | 13514 | 2022-03-25 11:13:27 |
| R16.htm | 22762 | 2022-03-25 11:13:27 |
| R17.htm | 18360 | 2022-03-25 11:13:27 |
| R2.htm | 33764 | 2022-03-25 11:13:27 |
| R3.htm | 10681 | 2022-03-25 11:13:27 |
| R4.htm | 52145 | 2022-03-25 11:13:27 |
| R5.htm | 27724 | 2022-03-25 11:13:27 |
| R6.htm | 34908 | 2022-03-25 11:13:27 |
| R7.htm | 11420 | 2022-03-25 11:13:27 |
| R8.htm | 7486 | 2022-03-25 11:13:27 |
| R9.htm | 23381 | 2022-03-25 11:13:27 |
| report.css | 2767 | 2022-03-25 11:13:27 |
| sdon-20211231.xsd | 13701 | 2022-03-25 11:13:27 |
| sdon-20211231x10k.htm | 799426 | 2022-03-25 11:13:27 |
| sdon-20211231x10k_htm.xml | 114502 | 2022-03-25 11:13:27 |
| sdon-20211231xex23d01.htm | 4946 | 2022-03-25 11:13:27 |
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| sdon-20211231xex32d01.htm | 7707 | 2022-03-25 11:13:27 |
| sdon-20211231xex32d02.htm | 7283 | 2022-03-25 11:13:27 |
| sdon-20211231xex4d03.htm | 5677 | 2022-03-25 11:13:27 |
| sdon-20211231_cal.xml | 10949 | 2022-03-25 11:13:27 |
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| Show.js | 1085 | 2022-03-25 11:13:27 |