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Related Parties - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2013 Mr. Peter Gray USD ($) | Dec. 31, 2013 Mr. Peter Gray EUR (€) | Dec. 31, 2013 Dr. John Climax USD ($) | Dec. 31, 2013 Dr. John Climax EUR (€)
Related Party Transaction [Line Items] |  |  |  |
Related party transaction amounts | $ 350,000 | € 265,000 | $ 346,000 | € 262,500
Term of agreement | Two years | Two years | Three years | Three years
Related party agreement expiration date |  |  | Dec. 31, 2012 | Dec. 31, 2012

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