Commitments (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Minimum future lease payments obligations

Minimum future lease payments obligations are as follows:

	Operating Leases
	(In thousands)
2018	1,306
2019	943
2020	868
2021	894
2022	921
Thereafter	310
Total	$	5,242

Rent expense

Rent expense was as follows:

	Year ended December 31,
	2017		2016		2015
	(In thousands)
Rent expense	$	1,307	$	1,283	$	1,291