Note 4 - Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

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

	Remainder of 2021		2022
License and related revenues	$	12,452	$	2,213

Disaggregation of Revenue [Table Text Block]

	Six months ended June 30, 2021 (unaudited)						Three months ended June 30, 2021 (unaudited)
	Licensing, NRE and related revenues		Royalties		Total		Licensing, NRE and related revenues		Royalties		Total
Primary geographical markets
United States	$	5,294	$	5,204	$	10,498	$	4,722	$	1,826	$	6,548
Europe and Middle East		833		1,172		2,005		410		496		906
Asia Pacific		23,805		19,551		43,356		10,403		12,600		23,003
Total	$	29,932	$	25,927	$	55,859	$	15,535	$	14,922	$	30,457
Major product/service lines
Connectivity products (baseband for handset and other devices, Bluetooth, Wi-Fi, NB-IoT and SATA/SAS)	$	22,518	$	20,192	$	42,710	$	9,713	$	12,087	$	21,800
Smart sensing products (AI, sensor fusion, audio/sound and imaging and vision)		7,414		5,735		13,149		5,822		2,835		8,657
Total	$	29,932	$	25,927	$	55,859	$	15,535	$	14,922	$	30,457
Timing of revenue recognition
Products transferred at a point in time	$	24,052	$	25,927	$	49,979	$	12,064	$	14,922	$	26,986
Products and services transferred over time		5,880		—		5,880		3,471		—		3,471
Total	$	29,932	$	25,927	$	55,859	$	15,535	$	14,922	$	30,457

	Six months ended June 30, 2020 (unaudited)						Three months ended June 30, 2020 (unaudited)
	Licensing and related revenues		Royalties		Total		Licensing and related revenues		Royalties		Total
Primary geographical markets
United States	$	4,749	$	1,170	$	5,919	$	1,967	$	657	$	2,624
Europe and Middle East		4,633		9,315		13,948		3,574		5,271		8,845
Asia Pacific		18,643		8,711		27,354		7,989		4,148		12,137
Total	$	28,025	$	19,196	$	47,221	$	13,530	$	10,076	$	23,606
Major product/service lines
Connectivity products (baseband for handset and other devices, Bluetooth, Wi-Fi, NB-IoT and SATA/SAS)	$	22,858	$	15,285	$	38,143	$	11,931	$	8,243	$	20,174
Smart sensing products (AI, sensor fusion, audio/sound and imaging and vision)		5,167		3,911		9,078		1,599		1,833		3,432
Total	$	28,025	$	19,196	$	47,221	$	13,530	$	10,076	$	23,606
Timing of revenue recognition
Products transferred at a point in time	$	21,306	$	19,196	$	40,502	$	10,268	$	10,076	$	20,344
Products and services transferred over time		6,719		—		6,719		3,262		—		3,262
Total	$	28,025	$	19,196	$	47,221	$	13,530	$	10,076	$	23,606

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

	June 30, 2021 (unaudited)		December 31, 2020
Trade receivables	$	10,484	$	14,765
Unbilled receivables (associated with licensing, NRE and related revenue)		2,742		5,479
Unbilled receivables (associated with royalties)		13,471		10,980
Deferred revenues (short-term contract liabilities)		4,382		2,434