Agreement With Creighton University (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Agreement with Creighton University (Textual) [Abstract]
Percentage of royalty of product revenue			1.50%
Minimum investment under royalty agreement	$ 2,500,000		$ 2,500,000
Period for minimum investment under royalty agreement			36 months
Patent related under royalty agreement			150,000
Reimbursement percentage of research and development expenses			20.00%
Research and development expense under royalty agreement	$ 11,000	$ 11,000	$ 23,000	$ 21,000