STOCKHOLDERS' EQUITY (Common Stock, 2018 Purchase Agreement and LP Purchase Agreement) (Details)		12 Months Ended
	Sep. 21, 2023	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) shares	Dec. 20, 2018 shares	Dec. 19, 2018 shares
Class of Stock [Line Items]
Common stock, shares authorized (in shares)		150,000,000	150,000,000	250,000,000	150,000,000
Proceeds from exercise of warrants | $			$ 11,000
Reverse stock split	0.05
Shares issued (in shares)		1,420,125	1,141,013
Common stock, shares outstanding (in shares)		1,420,125	1,141,013
Issuance of common stock, net of issuance costs | $		$ 2,245,000	$ 129,000
Issuance of common stock for consulting services | $		$ 177,000
Common Stock [Member]
Class of Stock [Line Items]
Proceeds upon issuance of common stock from exercise of warrants (in shares)		15,972	1,340
Shares issued (in shares)		30,852	4,251
Issuance of common stock for consulting services (in shares)		23,598
Common Stock [Member]
Class of Stock [Line Items]
Proceeds upon issuance of common stock from exercise of warrants (in shares)		15,972	1,340
Warrant exercises in period		15,972	1,340
Proceeds from exercise of warrants | $		$ 0	$ 11,000
Issuance of common stock for consulting services (in shares)		23,598
Issuance of common stock for consulting services | $		$ 200,000
Preferred Class B
Class of Stock [Line Items]
Conversion price (in dollars per share) | $ / shares		$ 8.00
Maximum [Member] | Common Stock [Member]
Class of Stock [Line Items]
Proceeds from exercise of warrants | $			$ 100,000