Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-346863-index-headers.html | 2021-12-02 17:28:58 | |
| 0001193125-21-346863-index.html | 2021-12-02 17:28:58 | |
| 0001193125-21-346863.txt | 2021-12-02 17:28:58 | |
 0001193125-21-346863-xbrl.zip | 66848 | 2021-12-02 17:28:58 |
| ath-20211130.xsd | 3102 | 2021-12-02 17:28:58 |
| ath-20211130_def.xml | 14875 | 2021-12-02 17:28:58 |
| ath-20211130_lab.xml | 24978 | 2021-12-02 17:28:58 |
| ath-20211130_pre.xml | 15869 | 2021-12-02 17:28:58 |
| d248326d8k.htm | 42803 | 2021-12-02 17:28:58 |
| d248326d8k_htm.xml | 9757 | 2021-12-02 17:28:58 |
| d248326dex991.htm | 758369 | 2021-12-02 17:28:58 |
| FilingSummary.xml | 1887 | 2021-12-02 17:28:58 |
| Financial_Report.xlsx | 6116 | 2021-12-02 17:28:58 |
 g248326g1203020904850.jpg | 3254 | 2021-12-02 17:28:58 |
| MetaLinks.json | 23668 | 2021-12-02 17:28:58 |
| R1.htm | 52072 | 2021-12-02 17:28:58 |
| report.css | 2767 | 2021-12-02 17:28:58 |
| Show.js | 1085 | 2021-12-02 17:28:58 |