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Defined Contribution Plan | 12 Months Ended
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Dec. 31, 2014
Defined Contribution Plan | (13) Defined Contribution Plan The Company makes available a 401(k) plan for its U.S. employees to which it made contributions in prior years. The Company did not make any contributions in 2014, 2013 or 2012.

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- Definition The entire disclosure for an entity's employee compensation and benefit plans, including, but not limited to, postemployment and postretirement benefit plans, defined benefit pension plans, defined contribution plans, non-qualified and supplemental benefit plans, deferred compensation, share-based compensation, life insurance, severance, health care, unemployment and other benefit plans. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration