Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2018

Commitments And Contingencies Disclosure [Abstract]

Schedule of Future Minimum Annual Lease Payments under All Non-cancelable Operating Leases

Future minimum annual lease payments under all non-cancelable operating leases as of June 30, 2018, were as follows (in thousands):

	Minimum Lease Payments
Remaining in 2018	$	179
2019		367
2020		378
2021		389
2022		400
2023		135
Total future minimum lease payments	$	1,848