v3.26.1
Notes Payable - Schedule of Notes Payable (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
May 15, 2026
Apr. 17, 2026
Dec. 31, 2025
Aug. 21, 2025
Aug. 20, 2025
Jul. 14, 2025
Mar. 21, 2025
Dec. 21, 2024
Nonrelated Party                  
Debt Instrument [Line Items]                  
Notes payable, current portion $ 27,977     $ 4,432          
Notes payable, long-term portion 71,951     56,234          
Notes Payable                  
Debt Instrument [Line Items]                  
Unpaid Principal Balance 116,237     78,799          
Fair Value Measurement Adjustments (7,380)     (7,280)          
Original Issue Discount and Proceeds Allocated to Warrants (8,929)     (10,853)          
Net Carrying Value 99,928     60,666          
2023 Unsecured SPA Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Unpaid Principal Balance 4,500     8,100          
Fair Value Measurement Adjustments 193     (622)          
Original Issue Discount and Proceeds Allocated to Warrants (450)     (810)          
Net Carrying Value $ 4,243     $ 6,668          
Junior Secured SPA Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 10.00%     10.00%          
Unpaid Principal Balance $ 4,727     $ 12,107          
Fair Value Measurement Adjustments (124)     (705)          
Original Issue Discount and Proceeds Allocated to Warrants 0     0          
Net Carrying Value $ 4,603     $ 11,402          
2024 Unsecured SPA Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 10.00%     10.00%         10.00%
Unpaid Principal Balance $ 33     $ 6,070          
Fair Value Measurement Adjustments 5     (252)          
Original Issue Discount and Proceeds Allocated to Warrants 0     0          
Net Carrying Value $ 38     $ 5,818          
2025 March Unsecured SPA Notes                  
Debt Instrument [Line Items]                  
Contractual Interest Rates               10.00%  
Aggregate principal amount               $ 41,000  
2025 March Unsecured SPA Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 10.00%     10.00%       18.00%  
Unpaid Principal Balance $ 8,538     $ 5,508          
Fair Value Measurement Adjustments (2,462)     (1,096)          
Original Issue Discount and Proceeds Allocated to Warrants (2,703)     (2,304)          
Net Carrying Value $ 3,373     $ 2,108          
2025 July Unsecured SPA Notes                  
Debt Instrument [Line Items]                  
Contractual Interest Rates             10.00%    
Aggregate principal amount         $ 83,500 $ 82,000 $ 82,000    
2025 July Unsecured SPA Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 10.00%     10.00%     18.00%    
Unpaid Principal Balance $ 14,738     $ 37,592          
Fair Value Measurement Adjustments (57)     (3,079)          
Original Issue Discount and Proceeds Allocated to Warrants (3,026)     (7,717)          
Net Carrying Value $ 11,655     $ 26,796          
Unsecured Convertible Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 4.27%     4.27%          
Unpaid Principal Balance $ 6,500     $ 5,000          
Fair Value Measurement Adjustments (1,557)     (1,558)          
Original Issue Discount and Proceeds Allocated to Warrants 0     0          
Net Carrying Value 4,943     $ 3,442          
Secured Streeterville Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates     18.00%            
Unpaid Principal Balance 45,780                
Fair Value Measurement Adjustments (1,934)                
Original Issue Discount and Proceeds Allocated to Warrants (750)                
Net Carrying Value 43,096                
Aggregate principal amount $ 30,000                
May 2026 Convertible Notes                  
Debt Instrument [Line Items]                  
Contractual Interest Rates   15.00%              
Aggregate principal amount   $ 25,000              
May 2026 Convertible Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 8.00% 18.00%              
Unpaid Principal Balance $ 27,000                
Fair Value Measurement Adjustments (1,444)                
Original Issue Discount and Proceeds Allocated to Warrants (2,000)                
Net Carrying Value $ 23,556                
Notes payable – China other | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 0.00%     0.00%          
Unpaid Principal Balance $ 4,421     $ 4,290          
Fair Value Measurement Adjustments 0     0          
Original Issue Discount and Proceeds Allocated to Warrants 0     0          
Net Carrying Value $ 4,421     $ 4,290          
2025 Convertible Note - AIXC | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates       0.00%          
Unpaid Principal Balance       $ 132          
Fair Value Measurement Adjustments       32          
Original Issue Discount and Proceeds Allocated to Warrants       (22)          
Net Carrying Value       $ 142          
Minimum | 2023 Unsecured SPA Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 10.00%     10.00%          
Minimum | Secured Streeterville Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 3.50%                
Maximum | 2023 Unsecured SPA Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 15.00%     15.00%          
Maximum | Secured Streeterville Notes | Notes Payable                  
Debt Instrument [Line Items]                  
Contractual Interest Rates 9.00%