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

Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 1)

Fair Value Measurements (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012
Cash [Member]
Summary of marketable securities
Amortized Cost	$ 2,335
Gross Unrealized Gain
Gross Unrealized Loss
Estimated Fair Value	2,335
Money market securities [Member]
Summary of marketable securities
Amortized Cost	9,027
Gross Unrealized Gain
Gross Unrealized Loss
Estimated Fair Value	9,027
Cash and cash equivalents [Member]
Summary of marketable securities
Amortized Cost	11,362
Gross Unrealized Gain
Gross Unrealized Loss
Estimated Fair Value	11,362
Money market securities [Member]
Summary of marketable securities
Amortized Cost	314
Gross Unrealized Gain
Gross Unrealized Loss
Estimated Fair Value	314
Restricted cash [Member]
Summary of marketable securities
Amortized Cost	314
Gross Unrealized Gain
Gross Unrealized Loss
Estimated Fair Value	314
Corporate bonds and commercial paper [Member]
Summary of marketable securities
Amortized Cost	73,697
Gross Unrealized Gain	15
Gross Unrealized Loss	(1)
Estimated Fair Value	73,711
Short-term investments [Member]
Summary of marketable securities
Amortized Cost	73,697
Gross Unrealized Gain	15
Gross Unrealized Loss	(1)
Estimated Fair Value	$ 73,711

- Definition

Amount of debt securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Statement of Financial Accounting Standard (FAS)

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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Reference 8: http://www.xbrl.org/2003/role/presentationRef

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Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details