Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000806176-19-000021-index-headers.html | 2019-09-17 11:38:32 | |
| 0000806176-19-000021-index.html | 2019-09-17 11:38:32 | |
| 0000806176-19-000021.txt | 2019-09-17 11:38:32 | |
 0000806176-19-000021-xbrl.zip | 84851 | 2019-09-17 11:38:32 |
 BarChart1.png | 27588 | 2019-09-17 11:38:32 |
 BarChart2.png | 27828 | 2019-09-17 11:38:32 |
 BarChart3.png | 27889 | 2019-09-17 11:38:32 |
| ck0000806176-20190827.xml | 158645 | 2019-09-17 11:38:32 |
| ck0000806176-20190827.xsd | 17165 | 2019-09-17 11:38:32 |
| ck0000806176-20190827_cal.xml | 5073 | 2019-09-17 11:38:32 |
| ck0000806176-20190827_def.xml | 425716 | 2019-09-17 11:38:32 |
| ck0000806176-20190827_lab.xml | 197671 | 2019-09-17 11:38:32 |
| ck0000806176-20190827_pre.xml | 462919 | 2019-09-17 11:38:32 |
| FilingSummary.xml | 6071 | 2019-09-17 11:38:32 |
| lp1-064.htm | 24687 | 2019-09-17 11:38:32 |
| R1.htm | 41538 | 2019-09-17 11:38:32 |
| R10.htm | 124087 | 2019-09-17 11:38:32 |
| R17.htm | 230873 | 2019-09-17 11:38:32 |
| R18.htm | 129790 | 2019-09-17 11:38:32 |
| R2.htm | 135445 | 2019-09-17 11:38:32 |
| R25.htm | 240142 | 2019-09-17 11:38:32 |
| R26.htm | 3932 | 2019-09-17 11:38:32 |
| R9.htm | 261196 | 2019-09-17 11:38:32 |
| report.css | 2767 | 2019-09-17 11:38:32 |
| Show.js | 1085 | 2019-09-17 11:38:32 |