Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 27, 2014

Accounting Policies [Abstract]

Reconciliation of Changes in Deferred Revenue

A reconciliation of the changes in the Company’s deferred revenue balance for the nine months ended September 27, 2014 and September 28, 2013 is as follows:

	Nine Months Ended
(in thousands)	September 27,2014			September 28, 2013
Balance, beginning of period	$	1,133		$	1,004
Additions to deferral		1,095			985
Revenue recognized		(1,053	)		(927	)
Balance, end of period	$	1,175		$	1,062

Reconciliation of Changes in Warranty Liability

A reconciliation of the changes in the Company’s warranty liability for the nine months ended September 27, 2014 and September 28, 2013 is as follows:

	Nine Months Ended
(in thousands)	September 27,2014			September 28, 2013
Balance, beginning of period	$	468		$	453
Accruals for product warranties		207			162
Cost of warranty claims and adjustments		(137	)		(143	)
Balance, end of period	$	538		$	472