Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-22-004547-index-headers.html | 2022-03-24 16:11:18 | |
| 0000950170-22-004547-index.html | 2022-03-24 16:11:18 | |
| 0000950170-22-004547.txt | 2022-03-24 16:11:18 | |
 0000950170-22-004547-xbrl.zip | 19854 | 2022-03-24 16:11:18 |
| atha-20220324.htm | 57280 | 2022-03-24 16:11:18 |
| atha-20220324.xsd | 2472 | 2022-03-24 16:11:18 |
| atha-20220324_htm.xml | 4890 | 2022-03-24 16:11:18 |
| atha-20220324_lab.xml | 14176 | 2022-03-24 16:11:18 |
| atha-20220324_pre.xml | 11460 | 2022-03-24 16:11:18 |
| atha-ex99_1.htm | 176843 | 2022-03-24 16:11:18 |
| FilingSummary.xml | 1734 | 2022-03-24 16:11:18 |
| Financial_Report.xlsx | 5727 | 2022-03-24 16:11:18 |
 img247042425_0.jpg | 18091 | 2022-03-24 16:11:18 |
| MetaLinks.json | 18229 | 2022-03-24 16:11:18 |
| R1.htm | 42042 | 2022-03-24 16:11:18 |
| report.css | 2767 | 2022-03-24 16:11:18 |
| Show.js | 1085 | 2022-03-24 16:11:18 |