REVENUE RECOGNITION (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregated revenue

The following table presents the disaggregation of our revenue for the three months ended March 31, 2019 and 2020 (in thousands).

	Three Months Ended March 31,
	2020		2019
Fixed fee license revenue	$	1,287	$	1,740
Per-Unit royalty revenue	4,895		3,307
Total royalty and license revenue	6,182		5,047
Development, services, and other revenue	75		75
Total revenues	$	6,257	$	5,122