Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2016

Stockholders Equity Note [Abstract]

Schedule of allocation of share-based compensation expense

For the years ended December 31, 2016 and 2015, the Company recognized stock compensation expense as follows:

	Year Ended December 31,
	2016		2015
Cost of services	$	6,003	$	—
Research and development		236,341		240,739
General and administrative		599,550		619,899
Sales and marketing		103,567		584,450
	$	945,461	$	1,445,088

Schedule of share-based compensation, options granted

A summary of the status of options granted is presented below as of and for the years ended December 31, 2016 and 2015:

	Number of Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value
Outstanding at January 1, 2015		404,272					9.3	$	—
Granted		1,961,637		$	2.68
Exercised		(11,472	)	$	0.20			$	19,519
Forfeited		(193,657	)	$	0.55
Outstanding at December 31, 2015		2,160,780		$	2.60		9.1	$	1,575,646
Granted		1,463,650		$	1.41
Exercised		(66,502	)	$	0.36			$	79,406
Forfeited		(571,687	)	$	3.99
Expired		(8,581	)	$	8.49
Outstanding at December 31, 2016		2,977,660		$	1.76		8.6	$	663,298
Vested and expected to vest		2,977,660		$	1.76		8.6	$	663,298
Exercisable at December 31, 2016		1,098,504		$	0.22		8.0	$	421,621

Schedule of share-based payment award, Stock Options granted, fair value

The fair value of each option grant was estimated at the date of grant using the Black-Scholes option pricing model based on the assumptions below:

	Year Ended December 31,
	2016		2015
Annual dividend		—		—
Expected life (in years)	5.25 - 6.25		5.5 - 6.25
Risk free interest rate	1.2 - 2.2%		1.5 - 1.9%
Expected volatility	42.0 - 49.8%		47.7 - 65.0%

Schedule of warrants to purchase shares of common stock

At December 31, 2016 and 2015, the following warrants to purchase shares of common stock were outstanding:

				Outstanding at December 31,
Issuance	Exercise Price		Expiration	2016		2015
August 2007	$	7.91	August 2017		8,921		8,921
March 2008	$	790.54	March 2018		46		46
November 2009	$	7.91	November 2019		6,674		6,674
January 2010	$	7.91	January 2020		6,674		6,674
March 2010	$	7.91	March 2020		1,277		1,277
November 2011	$	7.91	November 2021		5,213		5,213
December 2011	$	7.91	December 2021		664		664
March 2012	$	109.90	March 2019		4,125		4,125
February 2015	$	6.60	February 2025		225,011		225,011
May 2015	$	6.60	May 2020		3,457,750		3,457,750
May 2016	$	1.31	May 2021		4,739,348		—
June 2016	$	1.31	May 2021		2,050,821		—
					10,506,524		3,716,355