Contractual Obligations (Tables)

12 Months Ended

Dec. 31, 2017

Contractual Obligations [Abstract]

Future Minimum Lease Commitments under Operating Leases

We rent office space under leases which expire at various dates through January 31, 2022. Future minimum lease commitments under these operating leases as of December 31, 2017 are as follows:

	(In thousands)
2018	$	808
2019		479
2020		47
2021		47
2022		4
Total	$	1,385