Note 3 - Revenue From Contracts With Customers (Tables)

9 Months Ended

Sep. 26, 2020

Notes Tables

Disaggregation of Revenue [Table Text Block]

Major Class of Revenue	Three Months Ended								Nine Months Ended
	September 26,				September 28,				September 26,				September 28,
(In thousands)	2020				2019				2020				2019
Product	$	96,650	94	%	$	97,477	94	%	$	285,871	95	%	$	287,185	95	%
Licensing and services		6,392	6	%		5,992	6	%		15,076	5	%		16,671	5	%
Total revenue	$	103,042	100	%	$	103,469	100	%	$	300,947	100	%	$	303,856	100	%

Revenue by Channel	Three Months Ended								Nine Months Ended
	September 26,				September 28,				September 26,				September 28,
(In thousands)	2020				2019				2020				2019
Product revenue - Distributors	$	84,409	82	%	$	84,135	81	%	$	245,016	81	%	$	248,234	82	%
Product revenue - Direct		12,241	12	%		13,342	13	%		40,855	14	%		38,951	13	%
Licensing and services revenue		6,392	6	%		5,992	6	%		15,076	5	%		16,671	5	%
Total revenue	$	103,042	100	%	$	103,469	100	%	$	300,947	100	%	$	303,856	100	%

Revenue by Geographical Market	Three Months Ended								Nine Months Ended
	September 26,				September 28,				September 26,				September 28,
(In thousands)	2020				2019				2020				2019
United States	$	10,455	10	%	$	9,296	9	%	$	33,634	11	%	$	32,352	11	%
Other Americas		4,857	5	%		2,838	3	%		12,772	4	%		9,518	3	%
Americas		15,312	15	%		12,134	12	%		46,406	15	%		41,870	14	%
China		58,122	56	%		57,301	55	%		154,086	51	%		157,648	52	%
Taiwan		7,505	7	%		6,796	7	%		24,957	8	%		14,147	5	%
Japan		4,346	4	%		10,262	10	%		18,780	6	%		31,534	10	%
Other Asia		9,766	10	%		5,285	5	%		25,169	9	%		22,171	7	%
Asia		79,739	77	%		79,644	77	%		222,992	74	%		225,500	74	%
Europe		7,991	8	%		11,691	11	%		31,549	11	%		36,486	12	%
Total revenue	$	103,042	100	%	$	103,469	100	%	$	300,947	100	%	$	303,856	100	%

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

(In thousands)
Contract assets as of December 28, 2019	$	5,569
Revenues recorded during the period		11,660
Transferred to Accounts receivable or collected		(12,091	)
Contract assets as of September 26, 2020	$	5,138

(In thousands)
Contract liabilities as of December 28, 2019	$	2,313
Accruals for estimated future stock rotation and scrap returns		4,474
Less: Release of accruals for recognized stock rotation and scrap returns		(2,571	)
Prepayment for performance obligations expected to be satisfied within three months		336
Less: Revenue recognized on satisfaction of performance obligations		(179	)
Contract liabilities as of September 26, 2020	$	4,373