Defined Benefit Pension Plan (Tables)

3 Months Ended

Mar. 31, 2018

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

The components of net periodic benefit cost included in the accompanying condensed consolidated statements of operations were as follows (in thousands):

	Three Months Ended March 31,
	2018		2017
Service cost	$	28	$	22
Interest cost		27		25
Amortization		24		22
Net periodic benefit cost	$	79	$	69