STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Beginning Balance (in shares) at Dec. 31, 2022		6,748
Beginning Balance at Dec. 31, 2022	$ 5,279	$ 0	$ 127,482	$ (122,203)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	455		455
Net proceeds received for issuance of common stock and prefunding of warrants (in shares)		52,173
Net proceeds received for issuance of common stock and prefunding of warrants	5,407		5,407
Issuance of common stock upon exercise of warrants, net (in shares)		454,444
Issuance of common stock upon exercise of warrants, net	2,831	$ 1	2,830
Issuance of common stock for services (in shares)		454
Issuance of common stock for services	100		100
Issuance of shares pursuant to the vesting of restricted stock units, net of shares withheld for taxes (in shares)		110
Issuance of shares pursuant to the vesting of restricted stock units, net of shares withheld for taxes	(11)		(11)
Issuance of common stock for fractional shares in the reverse stock split (in shares)		74
Net loss	$ (7,710)			(7,710)
Ending Balance (in shares) at Dec. 31, 2023	514,003	514,003
Ending Balance at Dec. 31, 2023	$ 6,351	$ 1	136,263	(129,913)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	326		326
Net proceeds received for issuance of common stock (in shares)		15,051
Net proceeds received for issuance of common stock	38	$ 44	38
Issuance of common stock upon exercise of warrants, net (in shares)		505,962
Issuance of common stock upon exercise of warrants, net	1,980	$ 0	1,980
Issuance of common stock for fractional shares in the reverse stock split (in shares)		877
Net loss	$ (6,184)			(6,184)
Ending Balance (in shares) at Dec. 31, 2024	1,035,893	1,035,893
Ending Balance at Dec. 31, 2024	$ 2,511	$ 1	$ 138,607	$ (136,097)