Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000090144-22-000004-index-headers.html | 2022-06-03 16:22:19 | |
| 0000090144-22-000004-index.html | 2022-06-03 16:22:19 | |
| 0000090144-22-000004.txt | 2022-06-03 16:22:19 | |
 0000090144-22-000004-xbrl.zip | 102533 | 2022-06-03 16:22:19 |
| exhibit41bondpurchaseagree.htm | 581775 | 2022-06-03 16:22:19 |
| exhibit42thirdsupplemental.htm | 31853 | 2022-06-03 16:22:19 |
| exhibit43officerscertifica.htm | 199102 | 2022-06-03 16:22:19 |
| FilingSummary.xml | 1788 | 2022-06-03 16:22:19 |
| Financial_Report.xlsx | 5794 | 2022-06-03 16:22:19 |
| MetaLinks.json | 19050 | 2022-06-03 16:22:19 |
| R1.htm | 39112 | 2022-06-03 16:22:19 |
| report.css | 2767 | 2022-06-03 16:22:19 |
| Show.js | 1085 | 2022-06-03 16:22:19 |
| sppc-20220531.htm | 55199 | 2022-06-03 16:22:19 |
| sppc-20220531.xsd | 2603 | 2022-06-03 16:22:19 |
| sppc-20220531_def.xml | 14885 | 2022-06-03 16:22:19 |
| sppc-20220531_htm.xml | 18075 | 2022-06-03 16:22:19 |
| sppc-20220531_lab.xml | 28162 | 2022-06-03 16:22:19 |
| sppc-20220531_pre.xml | 14965 | 2022-06-03 16:22:19 |