Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000768847-22-000072-index-headers.html | 2022-12-30 16:15:50 | |
| 0000768847-22-000072-index.html | 2022-12-30 16:15:50 | |
| 0000768847-22-000072.txt | 2022-12-30 16:15:50 | |
 0000768847-22-000072-xbrl.zip | 90996 | 2022-12-30 16:15:50 |
| ck0000768847-20220531.htm | 74213 | 2022-12-30 16:15:50 |
| ck0000768847-20220531.xsd | 5102 | 2022-12-30 16:15:50 |
| ck0000768847-20220531_cal.xml | 3694 | 2022-12-30 16:15:50 |
| ck0000768847-20220531_def.xml | 108280 | 2022-12-30 16:15:50 |
 ck0000768847-20220531_g1.jpg | 43608 | 2022-12-30 16:15:50 |
| ck0000768847-20220531_htm.xml | 51837 | 2022-12-30 16:15:50 |
| ck0000768847-20220531_lab.xml | 221869 | 2022-12-30 16:15:50 |
| ck0000768847-20220531_pre.xml | 118088 | 2022-12-30 16:15:50 |
| FilingSummary.xml | 2473 | 2022-12-30 16:15:50 |
| MetaLinks.json | 240683 | 2022-12-30 16:15:50 |
| R1.htm | 18010 | 2022-12-30 16:15:50 |
| R2.htm | 80086 | 2022-12-30 16:15:50 |
| report.css | 2767 | 2022-12-30 16:15:50 |
| Show.js | 1085 | 2022-12-30 16:15:50 |