Commitments and Contingencies (Details) - Stanford License Agreement - Maximum $ in Millions	Jul. 31, 2017 USD ($)
Contingencies
Annual license maintenance fees	$ 0.1
Milestones payable upon event	$ 1.1

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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