CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit
Beginning Balance at Dec. 31, 2022	$ (6,310)	$ 1,888	$ 1,228,512	$ (1,236,710)
Beginning Balance (shares) at Dec. 31, 2022		188,859,165
Employee stock purchase plan	945	$ 16	929
Employee stock purchase plan (shares)		1,565,933
Non-cash share-based compensation	5,027		5,027
Net income (loss)	(6,399)			(6,399)
Ending Balance at Jul. 01, 2023	(6,737)	$ 1,904	1,234,468	(1,243,109)
Ending Balance (in shares) at Jul. 01, 2023		190,425,098
Beginning Balance at Apr. 01, 2023	(35,866)	$ 1,888	1,230,954	(1,268,708)
Beginning Balance (shares) at Apr. 01, 2023		188,859,165
Employee stock purchase plan	945	$ 16	929
Employee stock purchase plan (shares)		1,565,933
Non-cash share-based compensation	2,585		2,585
Net income (loss)	25,599			25,599
Ending Balance at Jul. 01, 2023	(6,737)	$ 1,904	1,234,468	(1,243,109)
Ending Balance (in shares) at Jul. 01, 2023		190,425,098
Beginning Balance at Dec. 30, 2023	(129,570)	$ 1,907	1,239,757	(1,371,234)
Beginning Balance (shares) at Dec. 30, 2023		190,733,153
Employee stock purchase plan	1,349	$ 10	1,339
Employee stock purchase plan (shares)		1,010,635
Issuance of vested restricted shares	675	$ 7	668
Issuance of vested restricted shares (shares)		740,115
Non-cash share-based compensation	5,844		5,844
Net income (loss)	2,734			2,734
Ending Balance at Jun. 29, 2024	(118,968)	$ 1,924	1,247,608	(1,368,500)
Ending Balance (in shares) at Jun. 29, 2024		192,483,903
Beginning Balance at Mar. 30, 2024	(136,273)	$ 1,923	1,244,210	(1,382,406)
Beginning Balance (shares) at Mar. 30, 2024		192,378,711
Issuance of vested restricted shares	675	$ 1	674
Issuance of vested restricted shares (shares)		105,192
Non-cash share-based compensation	2,724		2,724
Net income (loss)	13,906			13,906
Ending Balance at Jun. 29, 2024	$ (118,968)	$ 1,924	$ 1,247,608	$ (1,368,500)
Ending Balance (in shares) at Jun. 29, 2024		192,483,903