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Property and Equipment - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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| Property, Plant and Equipment [Abstract] | ||
| Total depreciation expense recorded | $ 0.3us-gaap_DepreciationNonproduction | $ 0.3us-gaap_DepreciationNonproduction |
| X | ||||||||||
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- Definition
The expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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