Royalty Agreements (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Datascope Royalty Agreement [Member]
Royalty Agreements [Line Items]
Current Royalty Rate	5.00%
Minimum Royalty Payment	$ 50,000
Royalty Expense	50,000
BioSphere APHP Royalty [Member]
Royalty Agreements [Line Items]
Current Royalty Rate	5.00%
Future Royalty Rate	2.50%
Royalty Expense	$ 1,400,000	$ 1,300,000	$ 401,000