Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Future Minimum Annual Lease Payments for Operating Leases

Future minimum annual lease payments under existing operating lease commitments are as follows:

Year ending December 31:
2019		1,128
2020		1,130
2021		1,069
2022		256
Total	$	3,583