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Summary of Significant Accounting Policies Concentrations (Details) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Licensee 1 [Member] | Revenue, Rights Granted [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk, percentage | 26.00% | 24.00% | 22.00%
Licensee 1 [Member] | Accounts Receivable [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk, percentage | 39.00% | 72.00% |
Licensee 2 [Member] | Revenue, Rights Granted [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk, percentage | 23.00% | 20.00% | 22.00%
Licensee 2 [Member] | Accounts Receivable [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk, percentage | 22.00% | 21.00% |
Licensee 3 [Member] | Revenue, Rights Granted [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk, percentage | 11.00% | 16.00% |
Licensee 3 [Member] | Accounts Receivable [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk, percentage | 16.00% |  |
Licensee 4 [Member] | Accounts Receivable [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk, percentage | 15.00% |  |
Licensees in foreign jurisdictions [Member] | Revenue, Rights Granted [Member] |  |  |
Concentration Risk [Line Items] |  |  |
Concentration risk, percentage | 79.00% | 49.00% | 43.00%

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