Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2018

Accrued Liabilities

Accrued liabilities consist of the following (in thousands):

	March 31, 2018		December 31, 2017
Employee compensation	$	5,246	$	9,560
Taxes		2,049		1,668
Royalty and license fees		1,243		1,383
Accrued purchases		521		1,191
Professional fees		827		947
Unearned revenue		1,547		960
Other accrued expenses		2,688		2,220
Total	$	14,121	$	17,929