Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
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12 Months Ended | |
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Dec. 31, 2012
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Dec. 31, 2011
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Significant Accounting Policies [Line Items] | ||
Security deposit for leased office space | $ 6,000 | |
Estimated useful lives of intangible assets | 5 years | |
Amortization expense of intangible assets | 6,000 | 3,000 |
Gross intangible assets | 78,000 | 78,000 |
Accumulated amortization of intangible assets | 48,000 | 42,000 |
Fair Value, Inputs, Level 2 | Money market funds
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Significant Accounting Policies [Line Items] | ||
Money market funds | $ 583,000 | $ 6,123,000 |
Computer and office equipment
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Significant Accounting Policies [Line Items] | ||
Estimated useful lives of property and equipment | 3 years | |
Furniture and fixtures
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Significant Accounting Policies [Line Items] | ||
Estimated useful lives of property and equipment | 5 years |
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- Details
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- Definition
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition
Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
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- Definition
The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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