Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-22-017392-index-headers.html | 2022-08-15 16:35:53 | |
| 0000950170-22-017392-index.html | 2022-08-15 16:35:53 | |
| 0000950170-22-017392.txt | 2022-08-15 16:35:53 | |
 0000950170-22-017392-xbrl.zip | 19982 | 2022-08-15 16:35:53 |
| atha-20220815.htm | 61320 | 2022-08-15 16:35:53 |
| atha-20220815.xsd | 2446 | 2022-08-15 16:35:53 |
| atha-20220815_htm.xml | 4888 | 2022-08-15 16:35:53 |
| atha-20220815_lab.xml | 13896 | 2022-08-15 16:35:53 |
| atha-20220815_pre.xml | 11355 | 2022-08-15 16:35:53 |
| atha-ex99_1.htm | 195740 | 2022-08-15 16:35:53 |
| FilingSummary.xml | 1734 | 2022-08-15 16:35:53 |
| Financial_Report.xlsx | 5758 | 2022-08-15 16:35:53 |
 img247042425_0.jpg | 18091 | 2022-08-15 16:35:53 |
| MetaLinks.json | 18093 | 2022-08-15 16:35:53 |
| R1.htm | 41388 | 2022-08-15 16:35:53 |
| report.css | 2767 | 2022-08-15 16:35:53 |
| Show.js | 1085 | 2022-08-15 16:35:53 |