Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

Future minimum lease payments with initial or remaining non-cancelable lease terms in excess of one year, at December 31, 2017, were as follows (in thousands):

For the Years Ending December 31,	Future Minimum Lease Payments
2018	2,242
2019	1,965
2020	1,146
2021	662
2022	221
Thereafter	—
Total future minimum lease commitments	$	6,236

Schedule of Product Warranty Liability

	For the Years Ended December 31,
	2017			2016
Warranty liability balance, beginning of the year	$	1,821		$	2,553
Product warranty accruals	305			1,116
Adjustments for payments made	(1,002		)	(1,848		)
Warranty liability balance, end of the year	$	1,124		$	1,821