Summary of Significant Accounting Policies Concentration Risk (Details)			3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended				3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended		3 Months Ended			9 Months Ended
	Sep. 30, 2012 Licensee 1 [Member]	Dec. 31, 2011 Licensee 1 [Member]	Sep. 30, 2012 Licensee 1 [Member] License Revenues [Member]	Sep. 30, 2011 Licensee 1 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 1 [Member] License Revenues [Member]	Sep. 30, 2011 Licensee 1 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 2 [Member]	Dec. 31, 2011 Licensee 2 [Member]	Sep. 30, 2012 Licensee 2 [Member] License Revenues [Member]	Sep. 30, 2011 Licensee 2 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 2 [Member] License Revenues [Member]	Sep. 30, 2011 Licensee 2 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 3 [Member]	Dec. 31, 2011 Licensee 3 [Member]	Sep. 30, 2012 Licensee 3 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 3 [Member] License Revenues [Member]	Sep. 30, 2011 Licensee 3 [Member] License Revenues [Member]	Dec. 31, 2011 Licensee 4 [Member]	Sep. 30, 2012 Licensee 4 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 4 [Member] License Revenues [Member]	Dec. 31, 2011 Licensee 5 [Member]	Sep. 30, 2012 Licensee 5 [Member] License Revenues [Member]	Sep. 30, 2012 Licensees in foreign jurisdictions [Member] License Revenues [Member]	Sep. 30, 2011 Licensees in foreign jurisdictions [Member] License Revenues [Member]	Sep. 30, 2012 Licensees in foreign jurisdictions [Member] License Revenues [Member]	Sep. 30, 2011 Licensees in foreign jurisdictions [Member] License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues			30.00%	59.00%	29.00%	30.00%			13.00%	26.00%	20.00%	20.00%			10.00%	11.00%	16.00%		10.00%	10.00%		10.00%	12.00%	59.00%	45.00%	56.00%
Concentration Risk, Percentage - Accounts Receivable	27.00%	18.00%					21.00%	15.00%					20.00%	14.00%				13.00%			10.00%