Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2017

Stockholders Equity Note [Abstract]

Schedule of Company Recognized Stock Compensation Expense

For the years ended December 31, 2017 and 2016, the Company recognized stock compensation expense as follows:

	Year Ended December 31,
	2017		2016
Cost of services	$	13,776	$	6,003
Research and development		237,103		236,341
General and administrative		603,787		599,550
Sales and marketing		56,732		103,567
	$	911,398	$	945,461

Summary of Status of Options Granted

A summary of the status of options granted is presented below as of and for the years ended December 31, 2017 and 2016:

	Number of Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value
Outstanding at January 1, 2016		86,431		$	65.00		9.1	$	1,575,646
Granted		58,546		$	35.25
Exercised		(2,660	)	$	9.00			$	79,406
Forfeited		(22,868	)	$	99.75
Expired		(343	)	$	212.25
Outstanding at December 31, 2016		119,106		$	44.00		8.6	$	663,298
Granted		58,324		$	17.58
Exercised		(1,167	)	$	7.01			$	11,256
Forfeited		(24,538	)	$	36.31
Expired		(12,330	)	$	83.49
Outstanding at December 31, 2017		139,395		$	31.16		8.3	$	37,339
Vested and expected to vest		139,395		$	31.16		8.3	$	37,339
Exercisable at December 31, 2017		63,365		$	4.73		7.7	$	33,575

Schedule of Fair Value of Option Grant Estimated Using Black-Scholes Option Pricing Model

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,
	2017		2016
Annual dividend		—		—
Expected life (in years)	5.25 - 6.25		5.25 - 6.25
Risk free interest rate	1.8 - 2.3%		1.2 - 2.2%
Expected volatility	44.2 - 53.0%		42.0 - 49.8%

Schedule of Warrants to Purchase Shares of Common Stock

At December 31, 2017 and 2016, the following warrants to purchase shares of common stock were outstanding:

				Outstanding at December 31,
Issuance	Exercise Price		Expiration	2017		2016
August 2007	$	197.75	August 2017		-		357
March 2008	$	19,763.50	March 2018		2		2
November 2009	$	197.75	November 2019		267		267
January 2010	$	197.75	January 2020		267		267
March 2010	$	197.75	March 2020		51		51
November 2011	$	197.75	November 2021		209		209
December 2011	$	197.75	December 2021		27		27
March 2012	$	2,747.50	March 2019		165		165
February 2015	$	165.00	February 2025		9,000		9,000
May 2015	$	165.00	May 2020		138,310		138,310
May 2016	$	32.81	May 2021		189,574		189,574
June 2016	$	32.81	May 2021		82,033		82,033
June 2017	$	19.50	June 2022		18,754		-
July 2017	$	17.25	July 2022		6,349		-
July 2017	$	12.50	July 2022		50,000		-
July 2017	$	10.63	July 2022		1,000,000		-
					1,495,008		420,262