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Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	6 Months Ended			1 Months Ended	6 Months Ended
	Jun. 30, 2013	Dec. 31, 2011	Mar. 31, 2009	Apr. 01, 2009 Trade name [Member]	Jun. 30, 2013 Trade name [Member]	Jun. 30, 2013 In-Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Aggregate purchase price			$ 5,135,000
Minimum expiration year of intangible assets						2027
Impairment amount of intangible asset		655,000
Useful life	12 years 2 months 12 days			15 years	15 years
Amortization expense	$ 66,000

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- Definition

Business Acquisition Cost Of Acquired Entity Purchase Price Net

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- Definition

Impairments Of Intangible Asset Finite Lived

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- Definition

Minimum Expiration Year Of Intangible Assets

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

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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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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