Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-23-062045-index-headers.html | 2023-11-09 16:10:14 | |
| 0000950170-23-062045-index.html | 2023-11-09 16:10:14 | |
| 0000950170-23-062045.txt | 2023-11-09 16:10:14 | |
 0000950170-23-062045-xbrl.zip | 19412 | 2023-11-09 16:10:14 |
| atha-20231109.htm | 52612 | 2023-11-09 16:10:14 |
| atha-20231109.xsd | 2446 | 2023-11-09 16:10:14 |
| atha-20231109_htm.xml | 4888 | 2023-11-09 16:10:14 |
| atha-20231109_lab.xml | 13904 | 2023-11-09 16:10:14 |
| atha-20231109_pre.xml | 11413 | 2023-11-09 16:10:14 |
| atha-ex99_1.htm | 147941 | 2023-11-09 16:10:14 |
| FilingSummary.xml | 1732 | 2023-11-09 16:10:14 |
| Financial_Report.xlsx | 5765 | 2023-11-09 16:10:14 |
 img247042425_0.jpg | 18091 | 2023-11-09 16:10:14 |
| MetaLinks.json | 18753 | 2023-11-09 16:10:14 |
| R1.htm | 41395 | 2023-11-09 16:10:14 |
| report.css | 2767 | 2023-11-09 16:10:14 |
| Show.js | 1085 | 2023-11-09 16:10:14 |