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Accrued Expenses - Summary of accrued expenses (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Accrued Liabilities, Current [Abstract]    
Offering Costs $ 497 $ 722
Compensation 589 264
Miscellaneous Accruals 386 142
Total Accrued Expenses $ 1,472 $ 1,128