Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2019

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	As of
	June 30, 2019		December 31, 2018
Payroll and related liabilities	$	4,440	$	3,620
Other	4,878		4,750
Total accrued liabilities	$	9,318	$	8,370