Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2021	$ 201,884	$ 1	$ 425,614	$ (223,182)	$ (549)
Balance (in shares) at Dec. 31, 2021		78,248,401
Employee stock-based compensation, net	6,517		6,517
Shares withheld related to employee tax withholding	(499)		(499)
Shares withheld related to employee tax withholding (in shares)		(105,475)
Issuance of common stock under employee stock plans	84		84
Issuance of common stock under employee stock plans (in shares)		266,303
Issuance of common stock from warrant exercises	614		614
Issuance of common stock from warrant exercises (in shares)		472,500
Repurchase of common stock	(6,795)					$ (6,795)
Repurchase of common stock (in shares)		(2,193,251)
Unrealized gain/loss on Investments	(813)				(813)
Unrealized currency translation loss	(399)				(399)
Net Loss	(49,308)			(49,308)
Balance at Sep. 30, 2022	151,285	$ 1	432,330	(272,490)	(1,761)	(6,795)
Balance (in shares) at Sep. 30, 2022		76,688,478
Balance at Dec. 31, 2021	$ 201,884	$ 1	425,614	(223,182)	(549)
Balance (in shares) at Dec. 31, 2021		78,248,401
Sale of common stock, net of issuance costs (in shares)	0
Balance at Dec. 31, 2022	$ 145,322	$ 1	445,267	(292,049)	(1,102)	(6,795)
Balance (in shares) at Dec. 31, 2022		78,257,258
Balance at Jun. 30, 2022	165,230	$ 1	430,390	(256,717)	(1,649)	(6,795)
Balance (in shares) at Jun. 30, 2022		76,688,478
Employee stock-based compensation, net	1,940		1,940
Unrealized gain/loss on Investments	111				111
Unrealized currency translation loss	(223)				(223)
Net Loss	(15,773)			(15,773)
Balance at Sep. 30, 2022	151,285	$ 1	432,330	(272,490)	(1,761)	(6,795)
Balance (in shares) at Sep. 30, 2022		76,688,478
Balance at Dec. 31, 2022	145,322	$ 1	445,267	(292,049)	(1,102)	(6,795)
Balance (in shares) at Dec. 31, 2022		78,257,258
Employee stock-based compensation, net	12,670		12,670
Shares withheld related to employee tax withholding	(7,121)		(7,121)
Shares withheld related to employee tax withholding (in shares)		(509,686)
Issuance of common stock under employee stock plans	6,580		6,580
Issuance of common stock under employee stock plans (in shares)		2,274,752
Sale of common stock, net of issuance costs	$ 271,882		271,882
Sale of common stock, net of issuance costs (in shares)	0	20,006,504
Unrealized gain/loss on Investments	$ 305				305
Unrealized currency translation loss	(108)				(108)
Net Loss	(61,290)			(61,290)
Balance at Sep. 30, 2023	368,240	$ 1	729,278	(353,339)	(905)	(6,795)
Balance (in shares) at Sep. 30, 2023		100,028,828
Balance at Jun. 30, 2023	386,115	$ 1	724,754	(330,805)	(1,040)	(6,795)
Balance (in shares) at Jun. 30, 2023		100,028,828
Employee stock-based compensation, net	4,481		4,481
Sale of common stock, net of issuance costs	43		43
Unrealized gain/loss on Investments	221				221
Unrealized currency translation loss	(86)				(86)
Net Loss	(22,534)			(22,534)
Balance at Sep. 30, 2023	$ 368,240	$ 1	$ 729,278	$ (353,339)	$ (905)	$ (6,795)
Balance (in shares) at Sep. 30, 2023		100,028,828