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Note 2 - Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

		2021				2022
License and related revenues		$	11,603			$	404

Disaggregation of Revenue [Table Text Block]

		Year ended December 31, 2019												Year ended December 31, 2020
		Licensing and related revenues				Royalties				Total				Licensing and related revenues				Royalties				Total
Primary geographical markets
United States		$	15,203			$	1,424			$	16,627			$	6,716			$	14,097			$	20,813
Europe and Middle East			5,282				16,211				21,493				6,176				5,790				11,966
Asia Pacific			27,405				21,627				49,032				39,621				27,926				67,547
Total		$	47,890			$	39,262			$	87,152			$	52,513			$	47,813			$	100,326
Major product/service lines
Connectivity products (baseband for handset and other devices, Bluetooth, Wi-Fi, NB-IoT, and SATA/SAS)		$	36,471			$	34,206			$	70,677			$	40,748			$	37,917			$	78,665
Smart sensing products (AI, sensor fusion, audio/sound and imaging and vision)			11,419				5,056				16,475				11,765				9,896				21,661
Total		$	47,890			$	39,262			$	87,152			$	52,513			$	47,813			$	100,326
Timing of revenue recognition
Products transferred at a point in time		$	33,794			$	39,262			$	73,056			$	40,075			$	47,813			$	87,888
Products and services transferred over time			14,096				—				14,096				12,438				—				12,438
Total		$	47,890			$	39,262			$	87,152			$	52,513			$	47,813			$	100,326

		Year ended December 31, 2018
		Licensing and related revenues				Royalties				Total
Primary geographical markets
United States		$	6,260			$	2,094			$	8,354
Europe and Middle East			3,672				13,698				17,370
Asia Pacific			30,514				21,639				52,153
Total		$	40,446			$	37,431			$	77,877
Major product/service lines
Connectivity products (baseband for handset and other devices, Bluetooth, Wi-Fi, NB-IoT, and SATA/SAS)		$	30,628			$	35,055			$	65,683
Smart sensing products (AI, sensor fusion, audio/sound and imaging and vision)			9,818				2,376				12,194
Total		$	40,446			$	37,431			$	77,877
Timing of revenue recognition
Products transferred at a point in time		$	30,744			$	37,431			$	68,175
Products and services transferred over time			9,702				—				9,702
Total		$	40,446			$	37,431			$	77,877

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

		December 31, 2019				December 31, 2020
Trade receivables		$	11,066			$	14,765
Unbilled receivables (associated with licensing and related revenue)			5,269				5,479
Unbilled receivables (associated with royalties)			11,972				10,980
Deferred revenues (short-term contract liabilities)			3,642				2,434

X

- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(1)
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