Condensed Consolidated Statements of Stockholders’ Equity (Deficit) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 31, 2020		189,953
Beginning Balance at Dec. 31, 2020	$ 35,082	$ 19	$ 178,747	$ (143,684)	$ 0
Equity
Stock option exercises (in shares)		102
Stock option exercises	333		333
Stock-based compensation expense	371		371
Issue common stock, net of issuance costs (in shares)		78,000
Issue common stock, net of issuance costs	327,486	$ 8	327,478
Issue stock for warrant exercises (in shares)		10,739
Issue stock for warrant exercises	9,393	$ 1	9,392
Net loss	(9,947)			(9,947)
Ending Balance (in shares) at Mar. 31, 2021		278,794
Ending Balance at Mar. 31, 2021	362,718	$ 28	516,321	(153,631)	0
Beginning Balance (in shares) at Dec. 31, 2020		189,953
Beginning Balance at Dec. 31, 2020	35,082	$ 19	178,747	(143,684)	0
Equity
Net loss	(28,733)
Other comprehensive loss	0
Ending Balance (in shares) at Jun. 30, 2021		279,054
Ending Balance at Jun. 30, 2021	345,866	$ 28	518,255	(172,417)	0
Beginning Balance (in shares) at Mar. 31, 2021		278,794
Beginning Balance at Mar. 31, 2021	362,718	$ 28	516,321	(153,631)	0
Equity
Stock option exercises (in shares)		60
Stock option exercises	89		89
Stock-based compensation expense	1,758		1,758
Issue stock for employee stock purchase plan (in shares)		150
Issue stock for employee stock purchase plan	65		65
Issue stock for warrant exercises (in shares)		50
Issue stock for warrant exercises	22		22
Net loss	(18,786)			(18,786)
Other comprehensive loss	0
Ending Balance (in shares) at Jun. 30, 2021		279,054
Ending Balance at Jun. 30, 2021	345,866	$ 28	518,255	(172,417)	0
Beginning Balance (in shares) at Dec. 31, 2021		289,602
Beginning Balance at Dec. 31, 2021	337,118	$ 29	553,747	(216,119)	(539)
Equity
Stock option exercises (in shares)		21
Stock option exercises	15		15
Stock-based compensation expense	5,102		5,102
Issuance of common stock due to the vesting of restricted stock units, net of shares withheld to cover taxes (in shares)		(65)
Net loss	(29,952)			(29,952)
Other comprehensive loss	(1,098)				(1,098)
Ending Balance (in shares) at Mar. 31, 2022		289,688
Ending Balance at Mar. 31, 2022	311,185	$ 29	558,864	(246,071)	(1,637)
Beginning Balance (in shares) at Dec. 31, 2021		289,602
Beginning Balance at Dec. 31, 2021	$ 337,118	$ 29	553,747	(216,119)	(539)
Equity
Stock option exercises (in shares)	270
Net loss	$ (62,112)
Other comprehensive loss	(1,379)
Ending Balance (in shares) at Jun. 30, 2022		290,061
Ending Balance at Jun. 30, 2022	284,734	$ 29	564,852	(278,229)	(1,918)
Beginning Balance (in shares) at Mar. 31, 2022		289,688
Beginning Balance at Mar. 31, 2022	311,185	$ 29	558,864	(246,071)	(1,637)
Equity
Stock option exercises (in shares)		249
Stock option exercises	136		136
Stock-based compensation expense	5,777		5,777
Issue stock for employee stock purchase plan (in shares)		150
Issue stock for employee stock purchase plan	75		75
Issuance of common stock due to the vesting of restricted stock units, net of shares withheld to cover taxes (in shares)		(26)
Net loss	(32,158)			(32,158)
Other comprehensive loss	(281)				(281)
Ending Balance (in shares) at Jun. 30, 2022		290,061
Ending Balance at Jun. 30, 2022	$ 284,734	$ 29	$ 564,852	$ (278,229)	$ (1,918)