Achieve Life Sciences, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

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

Fair Value Measurements - Summary of Marketable Securities (Detail)

v2.4.0.8

Fair Value Measurements - Summary of Marketable Securities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash, amortized cost and estimated fair value	$ 10,575	$ 2,440
Restricted cash, amortized cost and estimated fair value	314	314
Money market securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market securities, amortized cost and estimated fair value	4,018	15,635
Restricted cash, amortized cost and estimated fair value	314	314
Corporate bonds and commercial paper [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost
Gross Unrealized Gains
Gross Unrealized Losses
Estimated Fair Value
Total cash and cash equivalents [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	14,593	18,075
Gross Unrealized Gains
Gross Unrealized Losses
Estimated Fair Value	14,593	18,075
U.S government securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost
Gross Unrealized Gains
Gross Unrealized Losses
Estimated Fair Value
U.S agency securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost
Gross Unrealized Gains
Gross Unrealized Losses
Estimated Fair Value
Corporate bonds and commercial paper [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	24,627	57,312
Gross Unrealized Gains	3	4
Gross Unrealized Losses	(1)	(8)
Estimated Fair Value	24,629	57,308
Total short-term investments [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortized Cost	24,627	57,312
Gross Unrealized Gains	3	4
Gross Unrealized Losses	(1)	(8)
Estimated Fair Value	$ 24,629	$ 57,308

- Definition

Net amount of the difference between the fair value and cost of investments in available for sale securities.

+ References

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Available for sale securities gross unrealized loss accumulated in investments.

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- Definition

This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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- Definition

Cash and equivalents whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements.

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