Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Stockholders' Equity Note [Abstract]

Schedule of Company Recognized Stock-Based Compensation Expense

For the years ended December 31, 2021 and 2020, the Company recognized stock compensation expense as follows:

	Years Ended December 31,
	2021		2020
Cost of services	$	10,299	$	2,927
Research and development		232,319		62,783
General and administrative		553,557		231,010
Sales and marketing		82,400		19,366
	$	878,575	$	316,086

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, 2021 and 2020:

	Number of Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value
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	$	—
Granted		415,000		$	1.99
Exercised		—		$	—
Forfeited		(363,554	)	$	2.17
Expired		(2,619	)	$	544.38
Outstanding at December 31, 2021		1,713,349		$	6.88		8.5	$	—
Vested and expected to vest		1,713,349		$	6.88		8.5	$	—
Exercisable at December 31, 2021		731,090		$	10.45		8.0	$	—

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

The total fair value of options vested in the years ended December 31, 2021 and 2020 was $622,757 and $549,341, respectively. 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,
	2021		2020
Annual dividend		—		—
Expected life (in years)		5.75 - 6.00		5.25 - 6.25
Risk free interest rate		0.9% - 1.1%		0.3% - 0.5%
Expected volatility		121.3% - 123.1%		40.9% - 46.6%

Schedule of Status of Restricted Stock Units Granted

A summary of the status of restricted stock units granted is presented below as of and for the years ended December 31, 2021 and 2020:

	Number of Units			Weighted-Average Grant Date Fair Value
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
Granted		360,000		$	1.99
Vested		(3,768	)	$	8.94
Forfeited		(78,085	)	$	2.23
Unvested at December 31, 2021		286,265		$	2.03

Schedule of Warrants to Purchase Shares of Common Stock

At December 31, 2021 and 2020, the following warrants to purchase shares of common stock were outstanding:

				Outstanding at December 31,
Issuance		Exercise Price	Expiration	2021 (1)	2020 (1)
November 2011	$	3,955.00	November 2021	—	15
December 2011	$	3,955.00	December 2021	—	2
February 2015	$	3,300.00	February 2025	451	451
May 2016	$	656.20	May 2021	—	9,483
June 2016	$	656.20	May 2021	—	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	354,000	359,000
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	242,130
February 2021	$	3.55	August 2026	4,166,666	—
February 2021	$	3.90	August 2026	416,666	—
March 2021	$	3.56	March 2026	3,147,700	—
October 2021	$	2.05	April 2027	7,500,000	—
				16,217,946	5,848,131

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.