Award Timing Disclosure	12 Months Ended
Award Timing Disclosure	Dec. 31, 2025
Award Timing Disclosures [Line Items]
Award Timing MNPI Disclosure	We do not time equity grants to take advantage of a depressed stock price or an anticipated increase in stock price and generally grant awards in January and ensure that awards cannot be timed to take advantage of material non-public information. New hire stock awards to employees, including executive officers, are generally granted at the next Board of Directors’ meeting following their start date, and initial awards to non-employee directors are granted on the date of the non-employee director’s initial appointment or election to our Board of Directors.
Award Timing Method	New hire stock awards to employees, including executive officers, are generally granted at the next Board of Directors’ meeting following their start date, and initial awards to non-employee directors are granted on the date of the non-employee director’s initial appointment or election to our Board of Directors.
Award Timing MNPI Considered	true
Award Timing, How MNPI Considered	We do not time equity grants to take advantage of a depressed stock price or an anticipated increase in stock price and generally grant awards in January and ensure that awards cannot be timed to take advantage of material non-public information.

ACHIEVE LIFE SCIENCES, INC. 10-K/A