Common Stock Warrants and Common Stock Warrant Liability (Tables)

9 Months Ended

Sep. 30, 2017

Warrants and Rights Note Disclosure [Abstract]

Schedule of common stock warrant activity

The table summarizes the common stock warrant activity as of September 30, 2017 as follows:

	Number
	of			Date			Exercise
Common  Stock Warrants	Warrants			Issued	Term		Price
Outstanding at December 31, 2015		610,487
Initial Public Offering Underwriter		187,500		December 2016		5 years	$	9.60
Marketing and Development Services		100,000		February 2016		5 years(1)	$	7.50
Other Advisory Services		40,000		August 2016		3 years(1)	$	7.50
Promissory Notes		9,031		March 2016		3 years(1)	$	7.50
Warrants issued		336,531
Warrants exercised		(117,733	)
Outstanding at December 31, 2016		829,285
Warrants issued		—
Warrants exercised		—
Outstanding at September 30, 2017		829,285

(1) The warrants also terminate, if not exercised by the earlier of (i) December 13, 2018, or the second anniversary of the closing of an initial public offering of common stock; or (ii) a liquidation, dissolution or winding up of the Company.