Commitments and Contingencies (Details 2) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Lease, Cost [Abstract]
Operating lease cost	$ 591
Short-term lease cost	42
Sublease income	(32)
Total lease cost	$ 601
Other information:
Weighted average remaining lease term - operating leases	5 years 6 months
Weighted average discount rate - operating leases	4.10%