XML 23 R12.htm IDEA: XBRL DOCUMENT
v3.25.3

Accrued Expenses | 9 Months Ended
--- | ---
Sep. 30, 2025
Accrued Expenses |
Accrued Expenses | 5. Accrued Expenses ​ Accrued expenses consisted of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31,
(In thousands) |  | 2025 |  | 2024
Employee compensation expenses | ​ | $ | 3,756 | ​ | $ | 4,979
Research and development expenses | ​ | ​ | 1,685 | ​ | ​ | 2,173
Deferred transaction consideration | ​ | ​ | 2,372 | ​ | ​ | 3,927
Licensing expenses | ​ | ​ | 1,584 | ​ | ​ | 8,645
Restructuring expenses (Note 13) | ​ | ​ | — | ​ | ​ | 163
Other expenses | ​ |  | 387 | ​ |  | 446
Total accrued expenses | ​ | $ | 9,784 | ​ | $ | 20,333
​

X
- Definition The entire disclosure for accrued expenses and other liabilities that are classified as current at the end of the reporting period. + References No definition available. + Details
Name: | acrs_AccruedLiabilitiesDisclosureCurrentTextBlock
Namespace Prefix: | acrs_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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