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Property and Equipment Summary of Property and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Property and Equipment [Line Items]    
Furniture and fixtures $ 783 $ 472
Computer hardware and software 687 586
Leasehold improvements 306 173
Property and equipment, gross 1,776 1,231
Less: accumulated depreciation and amortization (1,010) (892)
Property and equipment, net $ 766 $ 339