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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2022

Share-Based Payment Arrangement [Abstract]

Summary of Stock Option Awards and Restricted Stock Grants

A summary of stock option awards and restricted stock grants, inclusive of awards granted under the 2018 Stock Plan and Inducement Option Grants for the nine-months ended September 30, 2022 is presented below:

 Summary of Stock Option Awards and Restricted Stock Grants

		Stock Options								Restricted Stock Awards								Weighted Average
		Options Outstanding				Weighted Average Exercise Price				Non-vested Restricted Stock Outstanding				Weighted Average Grant Date Fair Value				Contractual Terms of Equity Awards (in years)
Equity awards outstanding at January 1, 2022			441,425			$	38.50				1,481			$	12.36
Equity awards granted			697,156			$	2.79				55,650			$	1.96
Equity awards terminated			(17,659	)		$	35.28				(100	)		$	9.45
Equity awards outstanding at September 30, 2022			1,120,922			$	16.33				57,031			$	2.23				8.1
Aggregate intrinsic value of outstanding equity awards at September 30, 2022		$	335							$	-
Equity awards exercisable at September 30, 2022			521,723			$	27.72												7.5
Aggregate intrinsic value of equity awards exercisable at September 30, 2022		$	-

Schedule of Assumptions Used to Determine Fair Value of Options Granted

 Schedule of Assumptions Used to Determine Fair Value of Options Granted

			For the Nine Months Ended September 30,
			2022				2021
Risk-free interest rate			1.74 to 4.14	%			1.54 to 1.74	%
Expected volatility			107.6 to 113.95	%			106.8 to 113.2	%
Expected life (in years)			7.5 to 9.0				7.5 to 10.0
Expected dividend yield			-	%			-	%

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

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