We had the following transactions with Alphabet Inc. and its affiliates during the three months ended March 31, 2018 and April 1, 2017 (in thousands):



	Three Months Ended
	March 31, 2018		April 1, 2017
Revenue	$	637	$	392
Selling and marketing expense	$	3,036	$	3,102

We had the following transactions with Alphabet Inc. and its affiliates as of March 31, 2018 and December 30, 2017 (in thousands):



	Period Ended
	March 31, 2018		December 30, 2017
Accounts receivable	$	440	$	301
Unbilled accounts receivable	$	358	$	222
Accounts payable	$	268	$	128
Accrued expense	$	1,005	$	542
Deferred revenue	$	138	$	1