Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Employee Benefit Plans

Schedule of classification of liabilities in Consolidated Balance Sheets

	Year ended
	December 31,
	2017		2016
	(in thousands)
Current:
Accrued compensation	$	967	$	902
Total current liabilities	$	967	$	902
Long-term:
Other long-term liabilities		3,583		3,057
Total liabilities	$	4,550	$	3,959