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Description of Business and Summary of Significant Accounting Policies Revenue Recognition (Details) | Dec. 26, 2015 milestone
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Description of Business and Summary of Significant Accounting Policies [Abstract] |
Revenue recognition, number of milestones achieved | 0

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- Definition Description of Business and Summary of Significant Accounting Policies [Abstract] + References No definition available. + Details
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- Definition The number of substantive milestones existing as of a given date. + References No definition available. + Details
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