Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders' Equity Note [Abstract]

Schedule of Company Recognized Stock-Based Compensation Expense

For the years ended December 31, 2020 and 2019, the Company recognized stock compensation expense as follows:

	Years Ended December 31,
	2020		2019
Cost of services	$	2,927	$	2,781
Research and development		62,783		74,841
General and administrative		231,010		269,292
Sales and marketing		19,366		25,956
	$	316,086	$	372,870

Schedule 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, 2020 and 2019:

	Number of Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value
Outstanding at January 1, 2019		10,578		$	411.60		7.6	$	522
Granted		—		$	—
Exercised		—		$	—
Forfeited		(302	)	$	222.17
Expired		(622	)	$	269.87
Outstanding at December 31, 2019		9,654		$	418.10		8.0	$	—
Granted		1,525,000		$	2.13
Exercised		—		$	—
Assumed in business combination		134,371		$	48.40
Forfeited		(3,631	)	$	21.11
Expired		(872	)	$	473.92
Outstanding at December 31, 2020		1,664,522		$	7.99		9.4	$	—
Vested and expected to vest		1,664,522		$	7.99		9.4	$	—
Exercisable at December 31, 2020		—		$	—		—	$	—

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:

	Years Ended December 31,
	2020	2019
Annual dividend	—	—
Expected life (in years)	5.25 - 6.25	—
Risk free interest rate	0.3%-0.5%	—
Expected volatility	40.9% - 46.6%	—

Schedule of Status of Restricted Stock Unit Granted

A summary of the status of restricted stock units granted is presented below as of and for the years ended December 31, 2020 and 2019:

	Number of Units			Weighted- Average Grant Date Fair Value
Unvested at January 1, 2019		12		$	623.20
Granted		17,150		$	8.77
Vested		(12	)	$	623.20
Forfeited		(2,175	)	$	8.80
Unvested at December 31, 2019		14,975		$	8.76
Granted		—		$	—
Vested		(5,924	)	$	8.51
Forfeited		(933	)	$	8.84
Unvested at December 31, 2020		8,118		$	8.93

Schedule of Warrants to Purchase Shares of Common Stock

At December 31, 2020 and 2019, the following warrants to purchase shares of common stock were outstanding:

						Outstanding at December 31,
Issuance		Exercise Price		Expiration		2020 (1)		2019 (1)
	January 2010	$	3,955.00		January 2020		—		17
	March 2010	$	3,955.00		March 2020		—		7
	November 2011	$	3,955.00		November 2021		15		15
	December 2011	$	3,955.00		December 2021		2		2
	February 2015	$	3,300.00		February 2025		451		451
	May 2015	$	3,300.00		May 2020		—		6,697
	May 2016	$	656.20		May 2021		9,483		9,483
	June 2016	$	656.20		May 2021		4,102		4,102
	June 2017	$	390.00		June 2022		938		938
	July 2017	$	345.00		July 2022		318		318
	July 2017	$	250.00		July 2022		2,501		2,501
	July 2017	$	212.60		July 2022		50,006		50,006
	February 2018	$	81.25		February 2023		9,232		9,232
	February 2018	$	65.00		February 2023		92,338		92,338
	October 2019	$	2.00		October 2024		359,000		4,700,000
	October 2019	$	2.60		October 2024		235,000		235,000
	November 2020	$	1.94		May 2026		4,842,615		—
	November 2020	$	2.68		May 2026		242,130		—
							5,848,131		5,111,107

The warrants listed above were issued in connection with various equity, debt, preferred stock or development contract agreements.

(1) Warrants to purchase fractional shares of common stock resulting from the reverse stock split on August 22, 2019 were rounded up to the next whole share of common stock on a holder by holder basis.