v3.26.1
Summary of Significant Accounting Policies - Concentration of Credit Risk (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Concentration Risk [Line Items]          
Cash and cash equivalents $ 17,241   $ 17,241   $ 14,952
Restricted cash $ 589   $ 589   $ 667
American Capacity Purchase Agreement | Revenue Benchmark | Customer Concentration Risk          
Concentration Risk [Line Items]          
Concentration risk 0.00% 100.00% 84.90% 100.00%  
American Capacity Purchase Agreement | Accounts Receivable | Customer Concentration Risk          
Concentration Risk [Line Items]          
Concentration risk     0.00%   46.00%