Defined Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2018

Defined Benefit Plan [Abstract]

Schedule of Maxwell SA net pension cost

Components of net pension cost are as follows (in thousands):

	Three Months Ended March 31,
	2018			2017
Service cost	$	321		$	241
Cost recognized as a component of compensation cost	321			241
Interest cost	60			56
Expected return on plan assets	(334		)	(247		)
Prior service cost amortization	24			36
Net cost recognized in other components of defined benefit plans, net	(250		)	(155		)
Net pension cost	$	71		$	86

Schedule of Korea defined benefit plan net cost

Components of net cost related to the Korea employee defined benefit plan are as follows (in thousands):

	Three Months Ended March 31, 2018
Service cost	$	151
Cost recognized as a component of compensation cost	151
Interest cost	29
Cost recognized in other components of defined benefit plans, net	29
Net cost	$	180