Condensed Consolidated Statements of Changes in Stockholders' Deficit - USD ($) $ in Thousands	Total	Public equity	Private equity	Warrant exercises	Common Stock	Common Stock Public equity	Common Stock Private equity	Common Stock Warrant exercises	Additional Paid-in Capital	Additional Paid-in Capital Public equity	Additional Paid-in Capital Private equity	Additional Paid-in Capital Warrant exercises	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2021					41,228,736
Beginning balance at Dec. 31, 2021	$ (82,134)				$ 41				$ 174,621				$ (256,796)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued (in shares)						391,652
Common stock issued, value		$ 1,360								$ 1,360
Costs of common stock issued under public equity offering		(62)								(62)
Share-based compensation expense	913								913
Other	0								1				(1)
Net income (loss)	(13,220)												(13,220)
Ending balance (in shares) at Mar. 31, 2022					41,620,388
Ending balance at Mar. 31, 2022	(93,143)				$ 41				176,833				(270,017)
Beginning balance (in shares) at Dec. 31, 2021					41,228,736
Beginning balance at Dec. 31, 2021	(82,134)				$ 41				174,621				(256,796)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(29,522)
Ending balance (in shares) at Jun. 30, 2022					53,343,989
Ending balance at Jun. 30, 2022	(96,357)				$ 53				189,908				(286,318)
Beginning balance (in shares) at Mar. 31, 2022					41,620,388
Beginning balance at Mar. 31, 2022	(93,143)				$ 41				176,833				(270,017)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Fair value of warrants issued		5,874							5,874
Common stock issued (in shares)						1,013,226	6,686,491	4,000,000
Common stock issued, value		1,252	$ 4,629	$ 0		$ 1	$ 7	$ 4		1,251	$ 4,622	$ (4)
Costs of common stock issued under public equity offering		(77)	$ (824)							(77)	$ (824)
Shares issued under employee stock purchase plan (in shares)					23,884
Shares issued under employee stock purchase plan	15								15
Share-based compensation expense	2,219								2,219
Other	0								(1)				1
Net income (loss)	(16,302)												(16,302)
Ending balance (in shares) at Jun. 30, 2022					53,343,989
Ending balance at Jun. 30, 2022	(96,357)				$ 53				189,908				(286,318)
Beginning 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 (in shares)						1,078,622
Common stock issued, value		993				$ 1				992
Costs of common stock issued under public equity offering		(77)								(77)
Share-based compensation expense	344								344
Vested restricted stock units (in shares)					16,005
Vested restricted stock units	(8)								(8)
Other	(1)								(1)
Net income (loss)	8,068												8,068
Ending balance (in shares) at Mar. 31, 2023					55,922,361
Ending balance at Mar. 31, 2023	(109,235)				$ 56				193,848				(303,139)
Beginning 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]
Net income (loss)	2,276
Ending balance (in shares) at Jun. 30, 2023					61,615,959
Ending balance at Jun. 30, 2023	(106,651)				$ 62				202,218				(308,931)
Beginning balance (in shares) at Mar. 31, 2023					55,922,361
Beginning balance at Mar. 31, 2023	(109,235)				$ 56				193,848				(303,139)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued (in shares)						1,981,937		3,689,452
Common stock issued, value		4,409		$ 3,542		$ 2		$ 4		4,407		$ 3,538
Costs of common stock issued under public equity offering		$ (235)								$ (235)
Shares issued under employee stock purchase plan (in shares)					18,699
Shares issued under employee stock purchase plan	31								31
Share-based compensation expense	631								631
Vested restricted stock units (in shares)					3,510
Vested restricted stock units	(3)								(3)
Other	1								1
Net income (loss)	(5,792)												(5,792)
Ending balance (in shares) at Jun. 30, 2023					61,615,959
Ending balance at Jun. 30, 2023	$ (106,651)				$ 62				$ 202,218				$ (308,931)