Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000819940-23-000002-index-headers.html | 2023-01-04 09:22:01 | |
| 0000819940-23-000002-index.html | 2023-01-04 09:22:01 | |
| 0000819940-23-000002.txt | 2023-01-04 09:22:01 | |
 0000819940-23-000002-xbrl.zip | 124883 | 2023-01-04 09:22:01 |
 BarChart1.png | 13156 | 2023-01-04 09:22:01 |
| ck0000819940-20221230.htm | 531383 | 2023-01-04 09:22:01 |
| ck0000819940-20221230.xsd | 8210 | 2023-01-04 09:22:01 |
| ck0000819940-20221230_cal.xml | 4985 | 2023-01-04 09:22:01 |
| ck0000819940-20221230_def.xml | 141636 | 2023-01-04 09:22:01 |
| ck0000819940-20221230_htm.xml | 68242 | 2023-01-04 09:22:01 |
| ck0000819940-20221230_lab.xml | 186965 | 2023-01-04 09:22:01 |
| ck0000819940-20221230_pre.xml | 157293 | 2023-01-04 09:22:01 |
| FilingSummary.xml | 3774 | 2023-01-04 09:22:01 |
 img_705a61f3ec0b4.jpg | 16129 | 2023-01-04 09:22:01 |
 img_f0e7d424c6c14.jpg | 15035 | 2023-01-04 09:22:01 |
| MetaLinks.json | 268594 | 2023-01-04 09:22:01 |
| R1.htm | 26844 | 2023-01-04 09:22:01 |
| R10.htm | 3907 | 2023-01-04 09:22:01 |
| R2.htm | 142148 | 2023-01-04 09:22:01 |
| R9.htm | 259180 | 2023-01-04 09:22:01 |
| report.css | 2767 | 2023-01-04 09:22:01 |
| Show.js | 1085 | 2023-01-04 09:22:01 |