REVENUE RECOGNITION

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

REVENUE RECOGNITION

REVENUE RECOGNITION

Disaggregated Revenue

The following table presents the disaggregation of our revenue for the years ended December 31, 2022, and 2021 (in thousands):

	Years Ended December 31,
	2022		2021
Fixed fee license revenue	$	11,953	$	5,843
Per-unit royalty revenue	26,225		28,846
Total royalty and license revenue	38,178		34,689
Development, services, and other revenue	283		400
Total revenues	$	38,461	$	35,089

Contract Assets

As of December 31, 2022, 2021 and 2020, we had contract assets of $7.7 million, $12.4 million and $11.6 million included within Prepaid expenses and other current assets, respectively. As of December 31, 2022, 2021 and 2020, $0.5 million and $1.7 million and $4.6 million included within Other assets on the Consolidated Balance Sheets, respectively.

Contract assets decreased by $5.9 million from January 1, 2022 to December 31, 2022, primarily due to actual royalties billed and the reduction in contact assets balance following our settlement agreement with Marquardt GmbH. Contract assets decreased by $2.0 million from January 1, 2021 to December 31, 2021, primarily due to actual royalties billed during the year.

Deferred Revenue

Based on contracts signed and payments received as of December 31, 2022, we expect to recognize $17.4 million in revenue related to Performance Obligation B under our fixed fee license agreements, which are satisfied over time, including $11.7 million over one to three years and $5.7 million over more than three years.

As of December 31, 2021, total deferred revenue was $21.5 million. In 2022, we recorded a $0.8 million increase in deferred revenue as a result to a new contract with a customer. We recognized $4.9 million of deferred revenue during 2022.

As December 31, 2020, total deferred revenue was $26.4 million.