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, 2013 Licensee 1 [Member]	Dec. 31, 2012 Licensee 1 [Member]	Sep. 30, 2013 Licensee 1 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 1 [Member] License Revenues [Member]	Sep. 30, 2013 Licensee 1 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 1 [Member] License Revenues [Member]	Sep. 30, 2013 Licensee 2 [Member]	Dec. 31, 2012 Licensee 2 [Member]	Sep. 30, 2013 Licensee 2 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 2 [Member] License Revenues [Member]	Sep. 30, 2013 Licensee 2 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 2 [Member] License Revenues [Member]	Sep. 30, 2013 Licensee 3 [Member]	Dec. 31, 2012 Licensee 3 [Member]	Sep. 30, 2013 Licensee 3 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 3 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 3 [Member] License Revenues [Member]	Sep. 30, 2013 Licensee 4 [Member]	Sep. 30, 2012 Licensee 4 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 4 [Member] License Revenues [Member]	Sep. 30, 2012 Licensee 5 [Member] License Revenues [Member]	Sep. 30, 2013 Licensees in foreign jurisdictions [Member] License Revenues [Member]	Sep. 30, 2012 Licensees in foreign jurisdictions [Member] License Revenues [Member]	Sep. 30, 2013 Licensees in foreign jurisdictions [Member] License Revenues [Member]	Sep. 30, 2012 Licensees in foreign jurisdictions [Member] License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues			34.00%	30.00%	43.00%	29.00%			31.00%	13.00%	17.00%	20.00%			19.00%	10.00%	11.00%		10.00%	10.00%	10.00%	54.00%	12.00%	26.00%	45.00%
Concentration Risk, Percentage - Accounts Receivable	32.00%	34.00%					27.00%	30.00%					18.00%	25.00%				16.00%