Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
Apr. 02, 2022	Apr. 03, 2021
Revenue	$ 150,515	$ 115,716
Cost of revenue	49,748	45,130
Gross margin	100,767	70,586
Operating expenses:
Research and development	32,555	24,066
Selling, general, and administrative	28,771	25,092
Amortization of acquired intangible assets	1,169	603
Restructuring charges	54	176
Acquisition related charges	455	0
Total operating expenses	63,004	49,937
Income from operations	37,763	20,649
Interest expense	(708)	(718)
Other (expense) income, net	(22)	(162)
Income before income taxes	37,033	19,769
Income tax expense	955	956
Net income	$ 36,078	$ 18,813
Net income per share:
Basic (in dollars per share)	$ 0.26	$ 0.14
Diluted (in dollars per share)	$ 0.26	$ 0.13
Shares used in per share calculations:
Basic (in shares)	137,500	136,401
Diluted (in shares)	141,281	141,674

Represents amortization of intangible assets acquired.

No definition available.

Name:	lscc_AmortizationOfIntangibleAssetsAcquired
Namespace Prefix:	lscc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI https://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460