Parent Directory| Name | Size | Last Modified |
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| 0001437749-24-000389-index.html | 2024-01-03 16:47:20 | |
| 0001437749-24-000389.txt | 2024-01-03 16:47:20 | |
 0001437749-24-000389-xbrl.zip | 105669 | 2024-01-03 16:47:20 |
| ex_608905.htm | 652630 | 2024-01-03 16:47:20 |
| FilingSummary.xml | 1762 | 2024-01-03 16:47:20 |
| Financial_Report.xlsx | 5996 | 2024-01-03 16:47:20 |
| MetaLinks.json | 22016 | 2024-01-03 16:47:20 |
| R1.htm | 46549 | 2024-01-03 16:47:20 |
| report.css | 2767 | 2024-01-03 16:47:20 |
| Show.js | 1085 | 2024-01-03 16:47:20 |
| spre20231220_8k.htm | 42007 | 2024-01-03 16:47:20 |
| spre20231220_8k_htm.xml | 5899 | 2024-01-03 16:47:20 |
| sr-20240103.xsd | 4016 | 2024-01-03 16:47:20 |
| sr-20240103_def.xml | 13667 | 2024-01-03 16:47:20 |
| sr-20240103_lab.xml | 17972 | 2024-01-03 16:47:20 |
| sr-20240103_pre.xml | 13702 | 2024-01-03 16:47:20 |