Summary of Significant Accounting Policies Concentration Risk (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Concentrations
Effective Income Tax Rate Reconciliation, Percent	(13.00%)	56.00%	2.00%	10.00%
Licensee 1 [Member]
Concentrations
Concentration Risk, Percentage - Accounts Receivable	80.00%		80.00%		30.00%
Licensee 1 [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues	74.00%	58.00%	40.00%	46.00%
Licensee 2 [Member]
Concentrations
Concentration Risk, Percentage - Accounts Receivable					17.00%
Licensee 2 [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues		14.00%	27.00%	11.00%
Licensee 3 [Member]
Concentrations
Concentration Risk, Percentage - Accounts Receivable					15.00%
Licensees in foreign jurisdictions [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues	18.00%	79.00%	38.00%	67.00%