Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	At The Market Offering	Common Stock	Common Stock At The Market Offering	Additional Paid-in Capital	Additional Paid-in Capital At The Market Offering	Accumulated Deficit	Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2020	$ 82,170		$ 3		$ 243,830		$ (161,664)	$ 1
Beginning Balance, Shares at Dec. 31, 2020			27,325,959
Net loss	(28,034)						(28,034)
Issuance of common stock upon exercise of stock options	$ 9				9
Issuance of common stock upon exercise of stock options, Shares	2,501		2,501
Issuance of common stock purchased through employee stock purchase plan	$ 42				42
Issuance of common stock purchased through employee stock purchase plan, Shares			11,253
Vesting of restricted stock	(81)				(81)
Vesting of restricted stock, Shares			26,994
Stock-based compensation	2,366				2,366
Unrealized gain (loss) on short term investments	(2)							(2)
Ending Balance at Dec. 31, 2021	56,470		$ 3		246,166		(189,698)	(1)
Ending Balance, Shares at Dec. 31, 2021			27,366,707
Net loss	(36,838)						(36,838)
Issuance of common stock, net of issuance costs		$ 1,114				$ 1,114
Issuance of common stock net of issuance costs, Shares				181,553
Issuance of common stock and pre-funded warrants in common stock offering, net of issuance costs	46,645				46,645
Issuance of common stock and pre-funded warrants in common stock offering, net of issuance costs, Shares			6,620,000
Issuance of common stock upon exercise of stock options	$ 44				44
Issuance of common stock upon exercise of stock options, Shares	11,756		11,756
Issuance of common stock purchased through employee stock purchase plan	$ 173				173
Issuance of common stock purchased through employee stock purchase plan, Shares			45,938
Vesting of restricted stock	(54)				(54)
Vesting of restricted stock, Shares			31,962
Issuance of warrants	2,008				2,008
Stock-based compensation	2,838				2,838
Unrealized gain (loss) on short term investments	33							33
Ending Balance at Dec. 31, 2022	$ 72,433		$ 3		$ 298,934		$ (226,536)	$ 32
Ending Balance, Shares at Dec. 31, 2022			34,257,916