Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Net sales	$ 103,948	$ 95,618
Operating Income (Loss)	1,757	8,007
Cardiovascular Segment [Member]
Segment Reporting Information [Line Items]
Net sales	99,754	91,670
Operating Income (Loss)	1,628	8,338
Endoscopy Segment [Member]
Segment Reporting Information [Line Items]
Net sales	4,194	3,948
Operating Income (Loss)	$ 129	$ (331)