Commitments and Contingencies - Future Minimum Lease Payments (Details) $ in Thousands	Jun. 30, 2017 USD ($)
Capital Leases
2017 (6 months remaining)	$ 126
2018	252
2019	252
2020	60
2021 and beyond	0
Total minimum lease payments	690
Less: amount representing interest	(47)
Present value of capital lease obligations	643
Less: current portion	(224)
Long-term portion of capital leases	419
Operating Leases
2017 (6 months remaining)	1,552
2018	3,185
2019	3,280
2020	712
2021 and beyond	531
Total minimum lease payments	$ 9,260