Changes in Accumulated Other Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 28, 2014 Accumulated Translation Adjustment [Member]
Beginning balance	$ 815
Other comprehensive income before reclassifications	(294)
Amounts reclassified from accumulated other comprehensive income(1)	166	[1]
Net current-period comprehensive income	(128)
Ending balance	$ 687

[1] The amounts represent residual foreign currency translation balances in our Cataract and Irish subsidiaries after these subsidiaries had been effectively liquidated.