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Fair Value Measurements and Financial Instruments - Fair Value Measurement Hierarchy (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Jan. 22, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability $ 13,757 $ 11,511  
$8.63 Warrants      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 3,549 3,028  
PIPE Warrant liability      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 521 471 $ 1,300
Quoted prices in active markets (Level 1)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
OS Warrants 0 0  
Warrant liability 3,549 3,028  
Sponsor Earnout liability 0 0  
Secured Convertible Notes 0 0  
Quoted prices in active markets (Level 1) | $8.63 Warrants      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 3,549 3,028  
Quoted prices in active markets (Level 1) | PIPE Warrant liability      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 0 0  
Quoted prices in active markets (Level 1) | Liberty Warrants and Liberty Advisory Fee Warrant liability      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 0 0  
Significant observable inputs (Level 2)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
OS Warrants 0 0  
Warrant liability 0 0  
Sponsor Earnout liability 0 0  
Secured Convertible Notes 0 0  
Significant observable inputs (Level 2) | $8.63 Warrants      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 0 0  
Significant observable inputs (Level 2) | PIPE Warrant liability      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 0 0  
Significant observable inputs (Level 2) | Liberty Warrants and Liberty Advisory Fee Warrant liability      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 0 0  
Significant unobservable inputs (Level 3)      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
OS Warrants 649 322  
Warrant liability 10,208 8,483  
Sponsor Earnout liability 1,854 1,501  
Secured Convertible Notes 97,710 79,070  
Significant unobservable inputs (Level 3) | $8.63 Warrants      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 0 0  
Significant unobservable inputs (Level 3) | PIPE Warrant liability      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability 521 471  
Significant unobservable inputs (Level 3) | Liberty Warrants and Liberty Advisory Fee Warrant liability      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Warrant liability $ 9,687 $ 8,012