Note 2. Acquisitions.

Echelon Corporation

On September 14, 2018, we acquired 100% of the issued capital of Echelon Corporation, a Delaware corporation (“Echelon”), pursuant to the terms of an Agreement and Plan of Merger dated as of June 28, 2018. The purchase price was approximately $44.1 million paid in cash.

The assets and liabilities of Echelon were recorded in our condensed consolidated balance sheet as of the acquisition date, at their respective fair values. Fair value is estimated based on one or a combination of income, cost and/or market approaches, as determined based on the nature of the asset or liability, and the level of inputs available. With respect to assets and liabilities, the determination of fair value requires management to make subjective judgments as to projections of future operating performance, the appropriate discount rate to apply, long-term growth rates, and other factors, which affect the amounts recorded in the purchase price allocation. The excess of the consideration transferred over the fair value of the identifiable assets, net of liabilities, is recorded as goodwill, which is indicative of the expected continued growth and development of Echelon. The purchase price allocation that follows is based on these estimated fair values of assets acquired and liabilities assumed.

The following table summarizes the fair values of assets acquired and liabilities assumed (in thousands):


Cash	$	15,270
Short term investments		1,274
Accounts receivable		3,020
Inventories		5,710
Other current assets		2,845
Property and equipment, net		614
Intangible assets		17,690
Goodwill		4,266
Other non-current assets		252
Accounts payable		(3,630)
Other current liabilities		(2,642)
Other non-current liabilities		(563)
Fair value of net assets acquired	$	44,106

Intangible assets reflect the following:


		Fair Value	Useful Life (in Years)
	(in thousands)
Customer relationships	$	6,520	7
Developed technology		10,670	4
Trademarks		500	8
Total acquired intangible assets	$	17,690

S3 Asic Semiconductors Limited

On May 9, 2018, we acquired 100% of the issued capital of S3 Asic Semiconductors Limited, a private company limited by shares and incorporated in Ireland (“S3 Semiconductors”), pursuant to the Share Purchase Agreement dated May 9, 2018 (the “Agreement”). S3 Semiconductors is headquartered in Ireland and its subsidiaries are in the United States, Portugal and the Czech Republic. S3 Semiconductors and its subsidiaries are engaged in the business of providing advanced mixed signal semiconductor devices and intellectual property to customers in the industrial and communications markets. The aggregate consideration was approximately $35.0 million in cash and contingent consideration in the form of a $15.0 million earn-out. The earn-out is based on achievement of certain milestones through 2019, including minimum total revenue targets, revenue derived from sales of semiconductor devices and new customer engagements with minimum value thresholds. Based on revised estimates of performance against the earn-out thresholds we recorded a change in the fair value of the earn-out liability to approximately $10.5 million as of December 31, 2018. During 2019 we revalued the earn-out liability and recorded a reduction in that liability of approximately $0.3 million. In October 2019, we paid approximately $7.2 million against the liability and during the three months ended March 31, 2020 we revalued the earn-out liability and recorded a reduction in that liability of $0.9 million which was recorded as other income in the statement of operations. As of March 31, 2020, we estimated the fair value of the earn-out liability to be $2.0 million.

The assets and liabilities of S3 Semiconductors were recorded in our condensed consolidated balance sheet as of the acquisition date, at their respective fair values. Fair value is estimated based on one or a combination of income, cost and/or market approaches, as determined based on the nature of the asset or liability, and the level of inputs available. With respect to assets and liabilities, the determination of fair value requires management to make subjective judgments as to projections of future operating performance, the appropriate discount rate to apply, long-term growth rates, and other factors, which affect the amounts recorded in the purchase price allocation. The excess of the consideration transferred over the fair value of the identifiable assets, net of liabilities, is recorded as goodwill, which is indicative of the expected continued growth and development of S3 Semiconductors. The purchase price allocation that follows is based on these estimated fair values of assets acquired and liabilities assumed.

The following table summarizes the fair values of assets acquired and liabilities assumed (in thousands):


Cash	$	267
Accounts receivable		192
Other current assets		883
Property and equipment, net		191
Intangible assets		15,340
Goodwill		34,352
Accounts payable		(37)
Deferred revenue		(129)
Earn-out liability, current		(10,218)
Other current liabilities		(761)
Deferred tax liability		(1,918)
Earn-out liability, non-current		(3,279)
Fair value of net assets acquired	$	34,883

Intangible assets reflect the following:



		Fair Value	Useful Life (in Years)
	(in thousands)
Customer relationships	$	12,880	7
Contract backlog		210	0.5
Developed technology		1,080	5
Non-compete agreements		380	2
Trademarks		790	12
Total	$	15,340