v3.26.1
Fair Value Measurements - Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis (Details) - Fair Value, Nonrecurring [Member] - Level 3 [Member] - USD ($)
$ in Thousands
Mar. 29, 2026
Dec. 28, 2025
Dec. 29, 2024
Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]      
Principal amount $ 140,816 [1] $ 140,266 [1],[2] $ 125,773 [2]
Unamortized debt discount and debt issuance costs (85,157) (88,528) (90,678)
Net carrying amount excluding capitalized interest 55,659 [1] 51,738 [1] 35,095
Fair value 125,314 154,902 140,541
12.0% senior unsecured convertible notes - July 2024 Notes [Member]      
Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]      
Principal amount 27,973 [1] 27,973 [1],[2] 17,973 [2]
Unamortized debt discount and debt issuance costs (5,655) (5,832) (6,205)
Net carrying amount excluding capitalized interest 22,318 [1] 22,141 [1] 11,768
Fair value 26,724 33,165 21,390
12.0% senior unsecured convertible notes - Subtotal July 2024 Notes [Member]      
Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]      
Principal amount [2]   18,000 [1] 45,973
Unamortized debt discount and debt issuance costs   (10,369) (16,990)
Net carrying amount excluding capitalized interest   7,631 [1] 28,983
Fair value   21,204 54,713
12.0% senior unsecured convertible notes - July 2024 Notes – related parties [Member]      
Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]      
Principal amount 45,973 [1] 45,973 [1],[2] 28,000 [2]
Unamortized debt discount and debt issuance costs (15,709) (16,201) (10,785)
Net carrying amount excluding capitalized interest 30,264 [1] 29,772 [1] 17,215
Fair value 43,810 54,369 33,323
12.0% senior unsecured convertible notes - July 2025 Note – related party [Member]      
Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]      
Principal amount [1] 5,000 5,000 [2]  
Unamortized debt discount and debt issuance costs (3,481) (3,557)  
Net carrying amount excluding capitalized interest [1] 1,519 1,443  
Fair value 4,494 5,641  
12.0% senior unsecured convertible notes - November 2025 Note – related party [Member]      
Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]      
Principal amount [1] 2,000 2,000 [2]  
Unamortized debt discount and debt issuance costs (1,483) (1,509)  
Net carrying amount excluding capitalized interest [1] 517 491  
Fair value 1,971 2,360  
7.0% senior unsecured convertible notes - September 2024 Notes [Member]      
Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]      
Principal amount 53,793 [1] 56,543 [1],[2] 71,800 [2]
Unamortized debt discount and debt issuance costs (37,851) (42,211) (66,164)
Net carrying amount excluding capitalized interest 15,942 [1] 14,332 [1] 5,636
Fair value 45,830 59,425 77,245
7.0% senior unsecured convertible notes - September 2024 Notes – related parties [Member]      
Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]      
Principal amount 8,750 [1] 8,750 [1],[2] 8,000 [2]
Unamortized debt discount and debt issuance costs (5,946) (6,404) (7,524)
Net carrying amount excluding capitalized interest 2,804 [1] 2,346 [1] 476
Fair value 7,461 8,880 8,583
7.0% senior unsecured convertible notes - Subtotal September 2024 Notes [Member]      
Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]      
Principal amount 62,543 [1] 65,293 [1],[2] 79,800 [2]
Unamortized debt discount and debt issuance costs (43,797) (48,615) (73,688)
Net carrying amount excluding capitalized interest 18,746 [1] 16,678 [1] 6,112
Fair value 53,291 68,305 $ 85,828
7.0% senior unsecured convertible notes - September 2025 Notes [Member]      
Schedule of Financial Liabilities that were not Measured at Fair Value, on a Non-Recurring Basis [Line Items]      
Principal amount [1] 22,000 22,000 [2]  
Unamortized debt discount and debt issuance costs (18,425) (18,646)  
Net carrying amount excluding capitalized interest [1] 3,575 3,354  
Fair value $ 18,793 $ 24,227  
[1] Excludes capitalized interest (coupon interest, default interest and failure to file interest) of $9.6 million and $10.8 million as of March 29, 2026, and December 28, 2025, respectively, included in the July 2024 Notes.
[2] Excludes capitalized interest (coupon interest, default interest and failure to file interest) of $10.8 million and $13.6 million as of December 28, 2025 and December 29, 2024, respectively, included in the July 2024 Notes.