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Number of shares and warrants comprised in one common unit.

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The cash inflow from the additional capital contribution to the entity and from issuance of rights to purchase common shares at predetermined price, net of commissions and issuance costs.

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Number of shares issued on exercise of warrants.

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Warrants modified

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Exercise price per share or per unit of warrants or rights outstanding.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Number of warrants or rights outstanding.

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Amount of expense (income) related to adjustment to fair value of warrant liability.

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Per share or per unit amount of equity securities issued.

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Number of new stock issued during the period.

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

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Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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STOCKHOLDERS EQUITY - Common Stock Transaction (Details) - USD ($)	1 Months Ended	3 Months Ended
	Oct. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Common stock disclosures
Number of Warrants		2,388,877
Series A Prefunded Warrants October 2020
Common stock disclosures
Warrants modified	32,000
March 2020 Series A Warrants
Common stock disclosures
Warrants modified	29,091
2018 Warrants
Common stock disclosures
Exercise price (in dollars per unit)		$ 174.53
Shares issued on exercise of warrants		0	0
Number of Warrants		8,483
Existing Warrants [Member]
Common stock disclosures
Exercise price (in dollars per unit)	$ 5.05
Fair value adjustment of warrants	$ 100,000
2020 Series C Warrants Exercise price $1.62
Common stock disclosures
Exercise price (in dollars per unit)		$ 40.50
Number of Warrants		48,163
October 2020 Offering \| October 2022 Financing [Member]
Common stock disclosures
Exercise price (in dollars per unit)	$ 5.2499
October 2022 Offering [Member]
Common stock disclosures
Issuance of common stock and warrants in public offerings (in shares)	154,000
Proceeds from issuance of common stock and warrants, net of issuance costs	$ 8,000,000.0
Shares issued on exercise of warrants		676,000
October 2022 Offering [Member] \| October 2022 Private Placement Pre-Funded Warrants [Member]
Common stock disclosures
Fair value of warrants	$ 8,200,000
October 2022 Offering [Member] \| Preferred Investment Options [Member]
Common stock disclosures
Number of shares into which a warrant may be converted	1,190,476
October 2022 Offering [Member] \| Wainwright Preferred Investment Options [Member]
Common stock disclosures
Number of shares/warrants comprised in a unit (in shares)	111,429
October 2022 Offering [Member] \| October 2022 - Preferred Investment Options
Common stock disclosures
Equity issuance (in price per unit)	$ 5.25
Fair value of warrants	$ 4,900,000
Number of shares into which a warrant may be converted	1,714,286
October 2022 Offering [Member] \| October 2022 - Preferred Investment Options \| Expected volatility
Common stock disclosures
Fair value assumptions	1.2887
October 2022 Offering [Member] \| October 2022 - Preferred Investment Options \| Risk-free interest rate
Common stock disclosures
Fair value assumptions	0.0412
October 2022 Offering [Member] \| October 2022 - Preferred Investment Options \| Contractual term
Common stock disclosures
Warrant expiration term (in years)	5 years 6 months
October 2022 Offering [Member] \| October 2022 - Preferred Investment Options \| Expected dividend yield
Common stock disclosures
Fair value assumptions	0
October 2022 Offering [Member] \| October 2022 Placement Agent Warrants
Common stock disclosures
Fair value of warrants	$ 300,000
October 2022 Offering [Member] \| October 2022 Placement Agent Warrants \| Expected volatility
Common stock disclosures
Fair value assumptions	1.2996
October 2022 Offering [Member] \| October 2022 Placement Agent Warrants \| Risk-free interest rate
Common stock disclosures
Fair value assumptions	0.0414
October 2022 Offering [Member] \| October 2022 Placement Agent Warrants \| Contractual term
Common stock disclosures
Warrant expiration term (in years)	5 years
October 2022 Offering [Member] \| October 2022 Placement Agent Warrants \| Expected dividend yield
Common stock disclosures
Fair value assumptions	0
October 2022 Offering [Member] \| 2020 Series C Warrants Exercise price $1.62
Common stock disclosures
Warrants modified	19,048
October 2022 Offering [Member] \| October 2022 Financing [Member]
Common stock disclosures
Issuance of common stock and warrants in public offerings (in shares)	369,810