STOCKHOLDERS' EQUITY - Narrative (Details)	1 Months Ended	3 Months Ended					9 Months Ended
	Aug. 31, 2024 USD ($) $ / shares shares	Sep. 30, 2025 USD ($) $ / shares year shares	Jun. 30, 2025 USD ($) $ / shares shares	Mar. 31, 2025 USD ($) $ / shares year shares	Sep. 30, 2024 shares	Mar. 31, 2024 shares	Sep. 30, 2025 USD ($) $ / shares year shares	Sep. 30, 2024 USD ($)	Dec. 31, 2024 $ / shares
Stockholders’ Equity [Line Items]
Issuance of common stock upon exercise of warrants (in shares) | shares			40,000
Exercise price (in dollars per share)		$ 7.50					$ 7.50		$ 12.63
Proceeds from the exercise of warrants, net | $							$ 10,482,000	$ 1,983,000
Warrants, issued (in shares) | shares							5,310,676
Gross proceeds from issuances of common stock | $							$ 3,000,000.0
Stock issuance costs | $							299,000
Remaining borrowing capacity | $		$ 7,500,000					$ 7,500,000
Series H
Stockholders’ Equity [Line Items]
Issuance of common stock upon exercise of warrants (in shares) | shares		1,458,872	1,458,872
Exercise price (in dollars per share)		$ 4.15					$ 4.15
Sale of stock, price per share (in dollars per share)		$ 0.125	$ 0.125				$ 0.125
Proceeds from the exercise of warrants, net | $		$ 274,000	$ 182,000
Warrants, issued (in shares) | shares							1,458,872
Warrant exercise, gross proceeds | $		6,300,000	4,500,000
Warrant exercise, issuance cost | $		$ 685,000	$ 526,000
Series H | Maximum
Stockholders’ Equity [Line Items]
Number of warrants (in shares) | shares			1,458,872
Series H | Measurement Input, Share Price
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input		5.09					5.09
Series H | Measurement Input, Price Volatility
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input		1.14					1.14
Series H | Measurement Input, Expected Term
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input | year		1.3					1.3
Series H | Measurement Input, Expected Dividend Rate
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input		0					0
Series H | Measurement Input, Risk Free Interest Rate
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input		0.037					0.037
Original Warrants
Stockholders’ Equity [Line Items]
Exercise price (in dollars per share)	$ 2.90
Warrant exercise, gross proceeds | $	$ 1,100,000
Warrant exercise, issuance cost | $	$ 250,000
Modification of terms related to certain warrants | $				$ 58,000
Series F-1
Stockholders’ Equity [Line Items]
Exercise price (in dollars per share)	$ 4.35	$ 4.35					$ 4.35
Warrants, issued (in shares) | shares	251,884						0
Weighted average remaining life	4 years 6 months
Series F-1 | Measurement Input, Share Price
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input				2.38
Series F-1 | Measurement Input, Price Volatility
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input				1.20
Series F-1 | Measurement Input, Expected Term
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input | year				4.5
Series F-1 | Measurement Input, Expected Dividend Rate
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input				0
Series F-1 | Measurement Input, Risk Free Interest Rate
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input				0.040
Series F-2
Stockholders’ Equity [Line Items]
Exercise price (in dollars per share)	$ 4.35	$ 4.35					$ 4.35
Warrants, issued (in shares) | shares	122,834						0
Weighted average remaining life	1 year
Series F-2 | Measurement Input, Share Price
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input				2.38
Series F-2 | Measurement Input, Price Volatility
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input				1.11
Series F-2 | Measurement Input, Expected Term
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input | year				1
Series F-2 | Measurement Input, Expected Dividend Rate
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input				0
Series F-2 | Measurement Input, Risk Free Interest Rate
Stockholders’ Equity [Line Items]
Warrants, fair value, measurement input				0.040
Series F-1, Series F-2 and Dealer Manager Warrants
Stockholders’ Equity [Line Items]
Warrants, issued (in shares) | shares				1,517,608
Common Stock
Stockholders’ Equity [Line Items]
Issuance of common stock upon exercise of warrants (in shares) | shares		1,458,872	1,498,872	374,718	505,502	460
Issuance of common stock, net of issuance costs (in shares) | shares			489,341	365,319			854,660