Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Warrant Derivative Liabilities

The following table presents the assumptions used for the warrant derivative liabilities under the Black-Scholes option-pricing model:

	As of June 30, 2021						As of December 31, 2020
	Strome Warrants			B. Riley Warrants			Strome Warrants			B. Riley Warrants
Expected life		1.96			4.30			2.45			4.79
Risk-free interest rate		0.25	%		0.67	%		0.13	%		0.36	%
Volatility factor		147.10	%		134.44	%		150.55	%		140.95	%
Dividend rate		0	%		0	%		0	%		0	%
Transaction date closing market price	$	0.78		$	0.78		$	0.60		$	0.60
Exercise price	$	0.50		$	1.00		$	0.50		$	1.00

Schedule of Valuation Activity for Warrants Accounted for Derivative Liability

The following table represents the carrying amounts and change in valuation for the Company’s warrants accounted for as a derivative liability and classified within Level 3 of the fair-value hierarchy:

	As of and for the Six Months Ended June 30, 2021						As of and for the Six Months Ended June 30, 2020
	Carry Amount at Beginning of Period		Change in Valuation		Carrying Amount at End of Period		Carry Amount at Beginning of Period		Change in Valuation			Carrying Amount at End of Period
Strome Warrants	$	704,707	$	185,156	$	889,863	$	1,036,687	$	(260,345	)	$	776,342
B. Riley Warrants		443,188		119,787		562,975		607,513		(122,150	)		485,363
Total	$	1,147,895	$	304,943	$	1,452,838	$	1,644,200	$	(382,495	)	$	1,261,705