Fair Value Measurement (Tables)

9 Months Ended

Sep. 29, 2012

Fair Value Measurement [Abstract]

Financial assets and liabilities measured and recognized at fair value on a recurring basis

As of September 29, 2012 and December 31, 2011, financial assets and liabilities measured and recognized at fair value on a recurring basis and classified under the appropriate level of the fair value hierarchy as described above was as follows (in thousands):

	September 29, 2012								December 31, 2011
	Fair Value Measurements								Fair Value Measurements
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	12,838		0		0	$	12,838	$	10,133		0		0	$	10,133
Liabilities:
Earn-out-cash	$	0		0		719	$	719	$	0		0		765	$	765

Reconciliation of the changes in the Company's earn-out-cash (Level 3 liabilities) balance

A reconciliation of the changes in the Company’s earn-out – cash (Level 3 liabilities) balance for the nine months ended September 29, 2012 and October 1, 2011 is as follows (in thousands):

	Nine Months Ended
	September 29, 2012			October 1, 2011
Balance at the beginning of the period	$	765		$	380
Addition of earn-out - cash related to Ocunetics, Inc. acquisition		0			105
Payment made on earn-out - RetinaLabs		(241	)		0
Change in fair value of contingent consideration		195			55
Balance at the end of the period	$	719		$	540