Annual report [Section 13 and 15(d), not S-K Item 405]

Summary of Significant Accounting Policies - Fair values of financial instruments (Details)

v3.25.4
Summary of Significant Accounting Policies - Fair values of financial instruments (Details) - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Financial instrument assets    
Capped call derivative $ 15,108,000  
Financial instrument liabilities    
Stock option liabilities 1,346 $ 1,758
Recurring    
Financial instrument assets    
Cash equivalents 2,938,000 65,096,000
Restricted cash equivalents 11,472,000 11,011,000
Capped call derivative 15,108,000  
Financial instrument assets, total 29,518,000 76,107,000
Financial instrument liabilities    
Warrant liability 1,541,000 2,529,000
Stock option liabilities 1,346,000 1,758,000
Financial instrument liabilities, total 71,783,000 18,695,000
Recurring | Inventory derivative obligation (net)    
Financial instrument liabilities    
Derivative liabilities 16,638,000 14,408,000
Recurring | Conversion option derivative    
Financial instrument liabilities    
Derivative liabilities 52,258,000  
Recurring | Level 1    
Financial instrument assets    
Cash equivalents 2,938,000 65,096,000
Restricted cash equivalents 11,472,000 11,011,000
Financial instrument assets, total 14,410,000 76,107,000
Recurring | Level 2    
Financial instrument assets    
Capped call derivative 15,108,000  
Financial instrument assets, total 15,108,000  
Financial instrument liabilities    
Warrant liability 1,541,000 2,529,000
Stock option liabilities 1,346,000 1,758,000
Financial instrument liabilities, total 19,525,000 18,695,000
Recurring | Level 2 | Inventory derivative obligation (net)    
Financial instrument liabilities    
Derivative liabilities 16,638,000 $ 14,408,000
Recurring | Level 3    
Financial instrument liabilities    
Financial instrument liabilities, total 52,258,000  
Recurring | Level 3 | Conversion option derivative    
Financial instrument liabilities    
Derivative liabilities $ 52,258,000