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401(k) Plan - Additional Information (Details) (USD $)
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12 Months Ended | |
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Dec. 31, 2014
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Dec. 31, 2013
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| Defined Contribution Pension And Other Postretirement Plans Disclosure [Abstract] | ||
| Retirement contributions | $ 164,000us-gaap_DefinedContributionPlanCostRecognized | $ 162,000us-gaap_DefinedContributionPlanCostRecognized |
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- Details
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- Definition
The amount of the cost recognized during the period for defined contribution plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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