Summary of Significant Accounting Policies Concentration Risk (Details)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Licensee 1 [Member]
Concentrations
Concentration Risk, Percentage - Accounts Receivable	66.00%		30.00%
Licensee 1 [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues	58.00%	39.00%
Licensee 2 [Member]
Concentrations
Concentration Risk, Percentage - Accounts Receivable	17.00%		17.00%
Licensee 2 [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues	15.00%
Licensee 3 [Member]
Concentrations
Concentration Risk, Percentage - Accounts Receivable			15.00%
Licensees in foreign jurisdictions [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues	62.00%	16.00%