Parent Directory| Name | Size | Last Modified |
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| 0001437749-23-000770-index.html | 2023-01-10 09:29:20 | |
| 0001437749-23-000770.txt | 2023-01-10 09:29:20 | |
 0001437749-23-000770-xbrl.zip | 106495 | 2023-01-10 09:29:20 |
| ex_461690.htm | 662547 | 2023-01-10 09:29:20 |
| FilingSummary.xml | 1762 | 2023-01-10 09:29:20 |
| Financial_Report.xlsx | 5995 | 2023-01-10 09:29:20 |
| MetaLinks.json | 22177 | 2023-01-10 09:29:20 |
| R1.htm | 46531 | 2023-01-10 09:29:20 |
| report.css | 2767 | 2023-01-10 09:29:20 |
| Show.js | 1085 | 2023-01-10 09:29:20 |
| spre20230106_8k.htm | 42154 | 2023-01-10 09:29:20 |
| spre20230106_8k_htm.xml | 5901 | 2023-01-10 09:29:20 |
| sr-20230105.xsd | 4187 | 2023-01-10 09:29:20 |
| sr-20230105_def.xml | 13775 | 2023-01-10 09:29:20 |
| sr-20230105_lab.xml | 18059 | 2023-01-10 09:29:20 |
| sr-20230105_pre.xml | 13800 | 2023-01-10 09:29:20 |