Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid in Capital	Accumulated Other Comprehensive Income / (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2022	$ 100,593	$ 36	$ 389,105	$ (289)	$ (288,259)
Beginning balance, shares at Dec. 31, 2022		36,136,480
Issuance of common stock on exercise of stock options and vesting of restricted stock units	56		56
Issuance of common stock on exercise of stock options and vesting of restricted stock units, shares		141,953
Stock based compensation	1,481		1,481
Foreign currency translation adjustment	92			92
Unrealized gain on available for sale investments	235			235
Net loss	(12,254)				(12,254)
Ending balance at Mar. 31, 2023	90,203	$ 36	390,642	38	(300,513)
Ending balance, shares at Mar. 31, 2023		36,278,433
Beginning balance at Dec. 31, 2023	85,084	$ 43	401,638	3,047	(319,644)
Beginning balance, shares at Dec. 31, 2023		42,973,215
Issuance of common stock on exercise of stock options and vesting of restricted stock units	190		190
Issuance of common stock on exercise of stock options and vesting of restricted stock units, shares		242,018
Stock based compensation	1,274		1,274
Foreign currency translation adjustment	(1,229)			(1,229)
Unrealized gain on available for sale investments	7			7
Net loss	(11,149)				(11,149)
Ending balance at Mar. 31, 2024	$ 74,177	$ 43	$ 403,102	$ 1,825	$ (330,793)
Ending balance, shares at Mar. 31, 2024		43,215,233