SALE OF COMMON STOCK, WARRANTS AND PRE-FUNDED WARRANTS (Tables)

6 Months Ended

Jun. 30, 2021

Accumulated Other Comprehensive Income (Loss) [Line Items]

SUMMARY OF WARRANT ACTIVITY

The following table summarizes warrant activity for the six months ended June 30, 2021.

	Outstanding December 31, 2020		Warrants Issued		Warrants Exercised			Outstanding June 30, 2021
Transaction
February 14, 2020 common warrants		565,000		–		(25,500	)		539,500
December 23, 2020 common warrants		10,688,043		–		(10,688,043	)		–
December 23, 2020 placement agent warrants		641,283		–		–			641,283
December 23, 2020 pre-funded warrants		5,238,043		–		(5,238,043	)		–
January 14, 2021 common warrants		–		9,090,910		–			9,090,910
January 14, 2021 placement agent warrants		–		545,455		–			545,455
January 14, 2021 pre-funded warrants		–		2,420,910		(2,420,910	)		–
January 25, 2021 common warrants		–		8,016,033		–			8,016,033
January 22, 2021 placement agent warrants		–		480,962		–			480,962
Total		17,132,369		20,554,270		(18,372,496	)		19,314,143

Private Placement [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

SCHEDULE FOR MEASUREMENT OF FAIR VALUE OF COMMON WARRANTS

Placement agent warrants:

	January 14, 2021			June 30, 2021
Stock price	$	1.21		$	1.02
Exercise price	$	1.38		$	1.38
Risk-free rate		0.49	%		0.78	%
Volatility		99.3	%		102.0	%
Remaining term (years)		5.0			4.5

Warrant [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

SCHEDULE FOR MEASUREMENT OF FAIR VALUE OF COMMON WARRANTS

Accompanying common warrants:

	January 14, 2021			June 30, 2021
Stock price	$	1.21		$	1.02
Exercise price	$	1.20		$	1.20
Risk-free rate		0.49	%		0.78	%
Volatility		100.1	%		102.0	%
Remaining term (years)		5.0			4.5

Warrant [Member] | Monte Carlo Simulation Model [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

SCHEDULE FOR MEASUREMENT OF FAIR VALUE OF COMMON WARRANTS

Immediately prior to the exercise of the existing 10,688,043 liability classified common stock warrants, a remeasurement loss of $3.6 million was recorded. The Company measured the fair value of the common stock warrants using the Monte Carlo simulation model on January 22, 2021, using the following inputs:

	January 22, 2021
Stock price	$	1.05
Exercise price	$	0.62
Risk-free rate		0.43	%
Volatility		99.4	%
Remaining term (years)		4.9

Common Stock Warrants [Member] | Monte Carlo Simulation Model [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

SCHEDULE FOR MEASUREMENT OF FAIR VALUE OF COMMON WARRANTS

Accompanying new common stock warrants:

	January 25, 2021			June 30, 2021
Stock price	$	1.02		$	1.02
Exercise price	$	1.20		$	1.20
Risk-free rate		0.42	%		0.78	%
Volatility		99.0	%		102.0	%
Remaining term (years)		5.0			4.6

Placement Agent Warrants [Member] | Monte Carlo Simulation Model [Member]

Accumulated Other Comprehensive Income (Loss) [Line Items]

SCHEDULE FOR MEASUREMENT OF FAIR VALUE OF COMMON WARRANTS

Placement agent warrants:

	January 22, 2021			June 30, 2021
Stock price	$	1.05		$	1.02
Exercise price	$	1.20		$	1.20
Risk-free rate		0.44	%		0.78	%
Volatility		99.6	%		102.0	%
Remaining term (years)		5.0			4.6