Contracts with Customers (Tables)

9 Months Ended

Sep. 30, 2018

Contracts with Customers

Summary of significant changes in the contract assets and the contract liability balances

Significant changes in the contract assets and the contract liability balances during the nine months ended September 30, 2018 are as follows (in thousands):

	Contract Assets		Contract Liabilities
Beginning balance at January 1, 2018	$	1,344	$	52
Revenue recognized from performance obligations satisfied in the current period		1,386		(39)
Transferred to accounts receivables from contract assets recognized at the beginning of the period		(1,145)		—
Contract liabilities recognized related to upfront license fees		—		300
Other		(89)		(28)
Ending balance at September 30, 2018	$	1,496	$	285

Summary of royalty license contracts with customers

	Remainder of
	2018		2019		2020		2021		2022		Total
Royalty license contracts with customers	$	469		1,760		1,743		1,035		283	$	5,290