Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Compensation	$ 934	$ 1,806
Professional fees	266	404
Other expenses	271	123
Other liabilities	26	0
Total Accrued Expenses	$ 1,497	$ 2,333