LIQUIDITY (Details Narrative) - USD ($)											1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 22, 2021	Jan. 14, 2021	Jan. 07, 2021	Dec. 23, 2020	Nov. 20, 2020	Nov. 19, 2020	Feb. 14, 2020	Feb. 14, 2020	Dec. 19, 2019	Dec. 05, 2019	Dec. 31, 2020	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Apr. 12, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Accumulated deficit											$ 478,200,000	$ 478,200,000		$ 478,200,000
Cash and cash equivalents and short-term investments											$ 25,500,000	$ 25,500,000		25,500,000
Sale of common stock								10,638,298
Proceeds from common stock								$ 10,638,298						$ 32,020,000	$ 28,073,000
Public offering price per share							$ 2.35	$ 2.35
Warrant exercise price					$ 0.10	$ 2.80	$ 2.80	$ 2.80
Warrants expiration date							Feb. 12, 2027	Feb. 12, 2027
Public offering value								$ 22,500,000
Reduction in warrant exercise price					$ 0.10	$ 2.80
Common stock, par value											$ 0.001	$ 0.001		$ 0.001	$ 0.001
Common stock and warrants purchase shares											10,073,298	10,073,298		10,073,298
Proceeds from exercise of warrants											$ 1,000,000.0			$ 1,008,000
Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Proceeds from exercise of warrants	$ 1,000,000.0
Pre-Funded Warrant [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrant exercise price											$ 0.001	$ 0.001		$ 0.001
Common stock and warrants purchase shares											5,238,043	5,238,043		5,238,043
Pre-Funded Warrant [Member] | Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Proceeds from exercise of warrants			$ 5,000
Paycheck Protection Program [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Notes Payable																$ 3,600,000
Underwritten Offering [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Sale of common stock							10,638,298
Proceeds from common stock														$ 1,000,000.0
Number of warrants exercised														10,073,298
IPO [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of shares issued, shares				5,450,000
Common stock, par value				$ 0.001
Proceeds from offering				$ 7,200,000
Warrant term				5 years
IPO [Member] | Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of shares issued, shares		6,670,000
Common stock, par value		$ 0.001
Proceeds from offering		$ 10,000,000.0
IPO [Member] | Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock and warrants purchase shares				10,688,043
IPO [Member] | Maximum [Member] | Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock and warrants purchase shares		9,090,910
IPO [Member] | Pre-Funded Warrant [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrant exercise price				$ 0.001
Common stock and warrants purchase shares				5,238,043
Offering price per share				$ 0.7475
IPO [Member] | Pre-Funded Warrant [Member] | Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock and warrants purchase shares		2,420,910
Offering price per share		$ 1.100
IPO [Member] | Common Stock and Warrant [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Offering price per share				0.7485
IPO [Member] | Common Stock and Warrant [Member] | Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Offering price per share		1.099
IPO [Member] | Warrant [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrant exercise price				$ 0.624
IPO [Member] | Warrant [Member] | Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrant exercise price		$ 0.001
Private Placement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock and warrants purchase shares
Private Placement [Member] | Maximum [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock and warrants purchase shares				641,283
Private Placement [Member] | Warrant [Member] | Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Proceeds from exercise of warrants	$ 6,670,000
Purchase Agreement [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Sale of common stock									54,090				216,412
Proceeds from common stock										$ 25,000,000.0		$ 600,000	$ 600,000
Public offering price per share									$ 2.31
Number of shares issued, shares												216,412
Offering price per share										$ 2.00
Letter Agreement [Member] | Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrant exercise price	$ 0.624
Number of warrants exercised	10,688,043
Agreement description	The holder of the warrants may not exercise any portion of the warrants to the extent that the holder would own more than 4.99% of the outstanding common stock immediately after exercise, which percentage may be changed at the holder’s election to a lower percentage at any time or to a higher percentage not to exceed 9.99% upon 61 days’ notice to the Company. The Company also issued to designees of the placement agent for the registered direct offering in December 2020 warrants to purchase up to 6.0% of the aggregate number of warrants issued under the letter agreement (or warrants to purchase up to 480,962 shares of common stock).
Letter Agreement [Member] | Subsequent Event [Member] | Holder [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Warrant exercise price	$ 1.20
Common stock, par value	0.001
Offering price per share	$ 0.125
Warrant term	5 years
Letter Agreement [Member] | Maximum [Member] | Subsequent Event [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock and warrants purchase shares	10,688,043
Letter Agreement [Member] | Maximum [Member] | Subsequent Event [Member] | Holder [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Common stock and warrants purchase shares	8,016,033