REVENUE RECOGNITION (Tables)

9 Months Ended

Sep. 30, 2019

Revenue from Contract with Customer [Abstract]

Disaggregated revenue

The following table presents the disaggregation of the Company's revenue for the three and nine months ended September 30, 2019 and 2018 (in thousands).

	Three Months Ended September 30,				Nine Months Ended September 30,
	2019		2018		2019		2018
Fixed fee license revenue	$	4,115	$	4,317	$	10,109	$	81,955
Per-Unit royalty revenue	6,434		4,145		14,155		17,834
Total royalty and license revenue	10,549		8,462		24,264		99,789
Development, services, and other revenue	75		90		225		323
Total revenues	$	10,624	$	8,552	$	24,489	$	100,112