Achieve Life Sciences, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Accounting Policies (Policies)
Notes Tables
Notes Details

Common Stock - Issued and Outstanding Shares - Additional Information (Detail)

v3.24.3

Common Stock - Issued and Outstanding Shares - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended		3 Months Ended				9 Months Ended		26 Months Ended
	Feb. 29, 2024	Feb. 29, 2024	May 31, 2023	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Feb. 29, 2024
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option exercises, Shares				0		0		0	0
Restricted stock unit settlements				0		0		113,125	139,750
Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued						60,000
Restricted stock unit settlements					113,125		139,750
Virtu At-the-Market Sales Agreement [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued	0			0				0		200,000
Gross proceeds										$ 1.5
Direct Offering [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Gross proceeds from issuance of common stock		$ 60.0
Placement agent fees and offering expenses		3.9
Proceeds from issuance of common stock		$ 56.1	$ 15.3
Direct Offering [Member] \| Common Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued		13,086,151	3,000,000
Common stock, price per share	$ 4.585	$ 4.585	$ 5.5							$ 4.585
Private Placement [Member] \| Pre Funded Warrants
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price per unit of warrant	$ 0.001	$ 0.001		$ 0.001				$ 0.001		$ 0.001
Private Placement [Member] \| Common Stock [Member] \| Pre Funded Warrants
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Warrants to purchase common stock	13,086,151	13,086,151								13,086,151
Exercise price per unit of warrant	$ 4.906	$ 4.906		$ 4.906				$ 4.906		$ 4.906

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