Consolidated Statements of Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Public Offering [Member]	Warrants [Member]	Common Stock [Member]	Common Stock [Member] Public Offering [Member]	Additional Paid-In Capital [Member]	Additional Paid-In Capital [Member] Public Offering [Member]	Additional Paid-In Capital [Member] Warrants [Member]	Accumulated Deficit [Member]
Balances at beginning at Dec. 31, 2020	$ 45,547			$ 5		$ 227,987			$ (182,445)
Balances at beginning (shares) at Dec. 31, 2020				5,307,713
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	3,276					3,276
Issuance of restricted stock units under equity incentive plan (shares)				20,513
Tax withholding payments for net share-settled equity awards	(120)					(120)
Tax withholding payments for net share-settled equity awards (shares)				(3,938)
Net loss	(30,910)								(30,910)
Balances at ending at Dec. 31, 2021	17,793			$ 5		231,143			(213,355)
Balances at end (shares) at Dec. 31, 2021				5,324,287
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	2,530					2,530
Issuance of restricted stock units under equity incentive plan (shares)				18,650
Tax withholding payments for net share-settled equity awards	(16)					(16)
Tax withholding payments for net share-settled equity awards (shares)				(3,683)
Issuance of common stock	342	$ 9,327	$ 4,439		$ 3	342	$ 9,324	$ 4,439
Issuance of common stock (shares)				104,773	2,666,667
Exercise of common stock warrants				48,688
Net loss	(24,067)								(24,067)
Balances at ending at Dec. 31, 2022	$ 10,348			$ 8		$ 247,762			$ (237,422)
Balances at end (shares) at Dec. 31, 2022				8,159,382