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| 0001628280-19-002976-index.html | 2019-03-14 19:05:43 | |
| 0001628280-19-002976.txt | 2019-03-14 19:05:43 | |
 0001628280-19-002976-xbrl.zip | 201645 | 2019-03-14 19:05:43 |
| athx-20181231.xml | 1129904 | 2019-03-14 19:05:43 |
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| athx-20181231x10k.htm | 1407991 | 2019-03-14 19:05:43 |
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| ex321-20181231.htm | 8238 | 2019-03-14 19:05:43 |
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| Financial_Report.xlsx | 80777 | 2019-03-14 19:05:43 |
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| report.css | 2767 | 2019-03-14 19:05:43 |
| Show.js | 1085 | 2019-03-14 19:05:43 |