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Organization and Operations - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 07, 2025
Dec. 31, 2023
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 27, 2023
Aug. 31, 2024
Mar. 04, 2024
Jan. 26, 2024
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]                        
Accumulated deficit   $ 80,456 $ 286,958   $ 286,958   $ 244,177 $ 80,456        
Working capital deficit   104,743 194,661   194,661   150,784 104,743        
Net loss   (1,287) 16,129 $ 27,854 39,176 $ 60,844 101,495 54,738 $ 56,025      
Net cash flows used by operating activities         10,101 $ 42,170 10,929 (8,665)        
Cash and cash equivalents   $ 11,626 $ 15,819   $ 15,819   $ 31,694 $ 11,626        
Redeemable Preferred Stock                        
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]                        
Value of non-convertible redeemable preferred stock shares available                   $ 25,500 $ 25,000  
Subsequent Event | Securities Purchase Agreement                        
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]                        
Merger, net of redemptions and transaction costs (in shares) 2,000,000                      
Stock sold, price per share (in dollars per share) $ 2.9                      
Proceeds from issuance of common stock $ 5,800                      
Senior Notes                        
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]                        
Maximum aggregate principal amount                       $ 25,773
Senior Notes, Purchase or Refinancing of Aircraft                        
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]                        
Maximum aggregate principal amount                       $ 25,000