CONSOLIDATED STATEMENTS OF STOCKHOLDERS' (DEFICIT) EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Beginning Balance at Jan. 02, 2021	$ 265,034	$ 1,419	$ 721,247	$ (457,632)
Beginning Balance (shares) at Jan. 02, 2021		141,928,184
Issuance of common stock, net of underwriters' discounts and commissions	470,108	$ 422	469,686
Issuance of common stock, net of underwriters' discounts and commissions (shares)		42,236,000
Employee stock purchase plan	3,189	$ 4	3,185
Employee stock purchase plan (shares)		369,320
Stock option exercise	970	$ 2	968
Stock option exercise (shares)		198,764
Non-cash compensation	13,559		13,559
Net loss	(117,044)			(117,044)
Ending Balance at Jan. 01, 2022	635,816	$ 1,847	1,208,645	(574,676)
Ending Balance (in shares) at Jan. 01, 2022		184,732,268
Employee stock purchase plan	4,015	$ 38	3,977
Employee stock purchase plan (shares)		3,805,844
Issuance of vested restricted shares		$ 3	(3)
Issuance of vested restricted (shares)		321,053
Non-cash compensation	15,893		15,893
Net loss	(662,034)			(662,034)
Ending Balance at Dec. 31, 2022	$ (6,310)	$ 1,888	$ 1,228,512	$ (1,236,710)
Ending Balance (in shares) at Dec. 31, 2022		188,859,165