REVENUE RECOGNITION (Tables)

9 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

Disaggregated revenue

The following table presents the disaggregation of our revenue for the three and nine months ended September 30, 2020 and 2019 (in thousands).

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Fixed fee license revenue	$	1,243	$	4,115	$	3,821	$	10,109
Per-Unit royalty revenue	6,288		6,434		15,485		14,155
Total royalty and license revenue	7,531		10,549		19,306		24,264
Development, services, and other revenue	65		75		215		225
Total revenue	$	7,596	$	10,624	$	19,521	$	24,489