STOCKHOLDERS' EQUITY - Activity in stockholders' equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance (in shares)	5,223,015
Beginning Balance	$ 9,568	$ 2,511
Stock-based compensation	23	91
Issuance of common stock, net of transaction costs	173	1,066
Issuance of common stock upon exercise of warrants, net of transaction costs		889
Net loss	$ (2,063)	(1,665)
Ending Balance (in shares)	5,303,426
Ending Balance	$ 7,701	$ 2,892
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance (in shares)	5,223,015	1,035,893
Beginning Balance	$ 5	$ 1
Issuance of common stock, net of issuance costs (in shares)	80,411	365,319
Issuance of common stock upon exercise of warrants (in shares)		374,718
Issuance of common stock upon exercise of warrants, net of transaction costs		$ 1
Ending Balance (in shares)	5,303,426	1,775,930
Ending Balance	$ 5	$ 2
Additional Paid-In Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	152,043	138,607
Stock-based compensation	23	91
Issuance of common stock, net of transaction costs	173	1,066
Issuance of common stock upon exercise of warrants, net of transaction costs		888
Ending Balance	152,239	140,652
Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(142,480)	(136,097)
Net loss	(2,063)	(1,665)
Ending Balance	$ (144,543)	$ (137,762)