Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2016

Accounting Policies [Abstract]

Concentration Risk, Credit Risk, Policy [Policy Text Block]

Concentrations. One licensee individually accounted for 85% of revenues recognized during the three months ended June 30, 2016, and one licensee accounted for 53% of revenues recognized during the six months ended June 30, 2016. One licensee individually accounted for 74% of revenues recognized during the three months ended June 30, 2015 and two licensees accounted for 40% and 27% of revenues recognized during the six months ended June 30, 2015. For the three and six months ended June 30, 2016, 85% and 63%, respectively, of revenues were attributable to licensees domiciled in foreign jurisdictions, based on the jurisdiction of the entity obligated to satisfy payment obligations pursuant to the applicable revenue arrangement. For the three and six months ended June 30, 2015, 18% and 38%, respectively, of revenues were attributable to licensees domiciled in foreign jurisdictions. The Company does not have any material foreign operations.

Three licensees individually represented approximately 69%, 17% and 10% of accounts receivable at June 30, 2016. Two licensees individually represented approximately 72% and 21% of accounts receivable at December 31, 2015.