Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2019

Payables and Accruals [Abstract]

Schedule of accrued liabilities

Accrued liabilities consists of the following:

	December 31,
(in thousands)	2019		2018
Compensation	$	13,167	$	13,443
Right-of-use liabilities - operating leases	5,187		—
Professional fees	4,128		4,260
Contract liabilities	1,584		3,080
Non-income taxes	427		906
Interest	569		702
Operating costs	637		1,095
Other	1,619		1,203
Total	$	27,318	$	24,689