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REVENUE RECOGNITION (Tables)
 9 Months Ended
Sep. 30, 2022
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, 2022 and 2021 (in thousands):
Three Months Ended
September 30,		Nine Months Ended
September 30,
2022202120222021
Fixed fee license revenue$7,662 $1,247 $10,653 $4,346 
Per-unit royalty revenue6,269 5,821 18,426 20,671 
Total royalty and license revenue13,931 7,068 29,079 25,017 
Development, services, and other revenue75 105 218 325 
Total revenues$14,006 $7,173 $29,297 $25,342