XML 28 R17.htm IDEA: XBRL DOCUMENT
v3.25.2

Reserved for Future Issuance | 6 Months Ended
--- | ---
Jun. 30, 2025
Reserved for Future Issuance |
Reserved for Future Issuance | 9.Reserved for Future Issuance The Company has reserved for future issuance the following shares of common stock: ​
​ | ​ | ​ | ​ | ​
​ |  | June 30, | ​ | December 31,
​ |  | 2025 |  | 2024
Options outstanding to purchase common stock |  | 11,225,811 | ​ | 6,850,889
Reserved under the 2015 Second Amended and Restated Stock Incentive Plan and the 2022 Inducement Stock Incentive Plan |  | 9,973,775 | ​ | 8,849,170
Warrants for the purchase of common stock | ​ | 8,367,373 | ​ | 8,367,373
Series X Preferred Stock | ​ | 5,184,591 | ​ | 5,184,591
Reserved under the employee stock purchase plan |  | 55,216 | ​ | 49,139
Total |  | 34,806,766 | ​ | 29,301,162
​

X
- References No definition available. + Details
Name: | atxs_CommonStockReservedForFutureIssuanceAbstract
Namespace Prefix: | atxs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for reserved for future issuance. + References No definition available. + Details
Name: | atxs_ReservedForFutureIssuanceTextBlock
Namespace Prefix: | atxs_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration