Statements of Changes in Stockholders' Deficit - USD ($) $ in Thousands	Total	Private equity	Public equity	Common Stock	Common Stock Public equity	Additional Paid-in Capital	Additional Paid-in Capital Private equity	Additional Paid-in Capital Public equity	Accumulated Deficit
Balance (in shares) at Dec. 31, 2022				54,827,734
Beginning balance at Dec. 31, 2022	$ (118,554)			$ 55		$ 192,598			$ (311,207)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued upon warrant exercises (in shares)				8,689,452
Common Stock issued under public equity offering-ATM	8,342			$ 9		8,333
Costs of common stock issued under public equity offering-ATM		$ (35)					$ (35)
Common stock issued under equity offering (in shares)					4,958,341
Common Stock issued under public equity offering			$ 9,464		$ 5			$ 9,459
Costs of common stock issued under public equity offering			(552)					(552)
Shares issued under employee stock purchase plan (in shares)				36,168
Shares issued under employee stock purchase plan	66					66
Vested restricted stock units (in shares)				19,515
Vested restricted stock units, net	(11)					(11)
Share-based compensation expense	2,662					2,662
Options, exercises (in shares)				1,875
Options exercised, net	1					1
Net loss	(7,870)								(7,870)
Balance (in shares) at Dec. 31, 2023				68,533,085
Ending balance at Dec. 31, 2023	(106,487)			$ 69		212,521			(319,077)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued upon warrant exercises (in shares)				30,645	4,557,220
Common Stock issued under public equity offering-ATM	165		12,385		$ 4	165		12,381
Costs of common stock issued under public equity offering-ATM			(602)					(602)
Common stock issued under equity offering (in shares)					17,226,468
Common Stock issued under public equity offering			77,520		$ 18			77,502
Costs of common stock issued under public equity offering			$ (5,546)					$ (5,546)
Shares issued under employee stock purchase plan (in shares)				35,374
Shares issued under employee stock purchase plan	109					109
Vested restricted stock units (in shares)				673,925
Vested restricted stock units, net	(1,351)					(1,351)
Share-based compensation expense	7,056					7,056
Options, exercises (in shares)				357,025
Options exercised, net	732					732
Net loss	(44,137)								(44,137)
Balance (in shares) at Dec. 31, 2024				91,413,742
Ending balance at Dec. 31, 2024	$ (60,156)			$ 91		$ 302,967			$ (363,214)