Summary of Significant Accounting Policies Concentration Risk (Details)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Concentrations
Effective Income Tax Rate Reconciliation, Percent	11.00%	2.00%
Licensee 1 [Member]
Concentrations
Concentration Risk, Percentage - Accounts Receivable	84.00%		39.00%
Licensee 1 [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues	73.00%	22.00%
Licensee 2 [Member]
Concentrations
Concentration Risk, Percentage - Accounts Receivable	10.00%		22.00%
Licensee 2 [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues	12.00%	19.00%
Licensee 3 [Member]
Concentrations
Concentration Risk, Percentage - Accounts Receivable			16.00%
Licensee 3 [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues		16.00%
Licensee 4 [Member]
Concentrations
Concentration Risk, Percentage - Accounts Receivable			15.00%
Licensee 4 [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues		11.00%
Licensees in foreign jurisdictions [Member] | License Revenues [Member]
Concentrations
Concentration Risk, Percentage - Revenues	92.00%	25.00%