STOCKHOLDERS' EQUITY - Additional Information (Details)						1 Months Ended	3 Months Ended				9 Months Ended
	Jun. 10, 2021 USD ($) $ / shares shares	May 20, 2021 USD ($) shares	May 19, 2021 USD ($) $ / shares shares	Apr. 07, 2021 shares	Mar. 01, 2021 USD ($) shares	Nov. 30, 2021 USD ($)	Sep. 30, 2021 USD ($) Rate item Y $ / shares shares	Jun. 30, 2021 USD ($) shares	Mar. 31, 2021 USD ($) shares	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) Rate item Y $ / shares shares		Sep. 30, 2020 USD ($)		Jun. 17, 2021 shares	Dec. 31, 2020 shares
Common stock, shares issued | shares		1,300,000					101,992,963				101,992,963				3,170,730	89,908,600
Structuring fee paid to investor											$ 10,000
Gross proceeds											6,500,000
Remaining proceeds											6,490,000
Relative fair value of Series D Preferred Stock							$ 3,875,675				3,875,675
Commitment shares issued in connection with sale of Series D Preferred Stock		$ 2,665,000									1,339,582
Relative fair value of warrants							1,274,743				1,274,743
Deemed dividend							$ 0			$ 0	2,624,326
Beneficial conversion feature on Series D convertible preferred stock											2,624,326
Cash issuance costs								$ 365,000			$ 365,000
Warrants to purchase common shares issued | shares							5,202,878				5,202,878					6,787,911
Outstanding at the end (in years)							4 years 4 months 24 days				4 years 4 months 24 days
Aggregate gross proceeds						$ 6,500,000					$ 5,206,716
Repayments of remaining note payable											$ 2,450,000		$ 159,000
Common stock authorized | shares							500,000,000				500,000,000					500,000,000
Allocated Share-based Compensation Expense							$ 1,292,096			158,014	$ 2,765,959		252,831
Stock-based compensation											2,765,959		252,831
Aggregate proceeds										757,695	0	[1]	1,461,695	[1]
Unrecognized stock-based compensation expense							$ 5,560,259				$ 5,560,259
Weighted average remaining vesting period											3 years 2 months 12 days
Shares of common stock issued related to consulting services provided | shares				85,000			85,000				160,000
Grant date value of common stock issued related to consulting services provided							$ 186,399	$ 110,000	$ 49,800
Options Outstanding, Exercise Price | $ / shares							$ 0.66				$ 0.66
Exercise price
Warrant measurement input | item							2.50				2.50
Market price per share
Warrant measurement input | item							2.05				2.05
Expected term
Warrant measurement input | Y							1.0				1.0
Volatility
Warrant measurement input | item							142				142
Risk-free interest rate
Warrant measurement input | Rate							0.05				0.05
Research and development expenses
Allocated Share-based Compensation Expense							$ 0			7,424	$ 15,190		22,961
Selling, general and administrative expenses
Allocated Share-based Compensation Expense							1,292,096			$ 150,590	2,750,770		229,870
Stock options.
Unrecognized stock-based compensation expense							175,780				$ 175,780
Weighted average remaining vesting period											2 years 10 months 24 days
Market-Based Awards
Common stock authorized | shares	1,500,000				1,500,000
Grant date value of stock	$ 2,579,000				$ 2,911,420
Market Cap	$ 4,000,000,000				$ 4,000,000,000
Unrecognized stock-based compensation expense							4,116,195				$ 4,116,195
Weighted average remaining vesting period											1 year 10 months 9 days
Options Outstanding, Exercise Price | $ / shares	$ 2.60
Common stock
Allocated Share-based Compensation Expense							$ 440,333				$ 1,000,647
Restricted common stock issued (in shares) | shares							155,000	415,000	2,000,000
Aggregate proceeds							$ 186,399				$ 346,199
Stock Issued During Period, Shares, Conversion of Convertible Securities | shares								3,170,730
Shares of common stock issued related to consulting services provided | shares							85,000	55,000	20,000
Grant date value of common stock issued related to consulting services provided							$ 9	$ 6	$ 2
Warrants
Stock Issued During Period, Shares, Conversion of Convertible Securities | shares							1,185,033				4,185,033
Warrants | Common stock
Stock-based compensation							$ 1,494,216				$ 5,206,716
Series D Convertible Preferred Stock
Beneficial conversion feature on Series D convertible preferred stock											$ 2,624,326		$ 0
Convertible Preferred Stock, Shares Issued upon Conversion | shares															650
Convertible Preferred Stock, Shares Issued upon Conversion | shares															650
Series D Convertible Preferred Stock | Securities Purchase Agreement
Common stock issued for cash, net of issuance costs (in shares) | shares			650
Warrants to purchase common shares issued | shares			2,600,000
Outstanding at the end (in years)			1 year
Shares issued price (in dollars per share) | $ / shares			$ 2.50
Aggregate gross proceeds			$ 6,500,000
Commitment fee shares of common stock | shares			1,300,000
Repayments of remaining note payable			$ 1,400,000
Fixed conversion price | $ / shares			$ 2.05
Convertible Preferred Stock, Shares Issued upon Conversion | shares			3,170,732
Cumulative dividends annual rate percentage			10.00%
Convertible Preferred Stock, Shares Issued upon Conversion | shares			3,170,732

[1] For the nine months ended September 30, 2020, the amount represents gross proceeds of $2,152,695 less $691,000 withheld by the investor to pay down a portion of the note payable held by the same investor.