Shareholder Lawsuit (Details)	12 Months Ended
Dec. 31, 2016 USD ($)
Garfield vs Capnia, Inc. [Member] \| Settled Litigation [Member]
Loss Contingencies [Line Items]
Professional fees	$ 175,000

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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