v3.24.4
Commitment and Contingencies - Narrative (FY) (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 15, 2024
Mar. 04, 2024
Jan. 12, 2024
Nov. 16, 2023
Oct. 23, 2023
Oct. 18, 2023
Oct. 05, 2023
Oct. 02, 2023
Sep. 07, 2023
Feb. 27, 2023
Jul. 20, 2022
Jun. 30, 2021
Sep. 30, 2024
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
Loss Contingencies [Line Items]                                      
Other expense                           $ (165,000) $ (93,000) $ (203,000) $ (492,000) $ (748,000) $ (4,169,000)
Percentage of equity interest sold by co-founders                       100.00%              
Payments to co-founders                       $ 40,000,000              
Additional payments owed to co-founders                   $ 10,000,000   10,000,000              
Minimum proceeds from sale of business and other capital raising transactions                       250,000,000              
Aggregate cost $ 2,800,000 $ 4,000,000 $ 4,000,000         $ 4,000,000 $ 5,000,000 $ 10,000,000                  
Payments for legal settlements                         $ 500,000            
Consideration Due within 10 Business Days                                      
Loss Contingencies [Line Items]                                      
Additional payments owed to co-founders                       $ 10,000,000              
Threshold period                       10 days              
Minimum proceeds from sale of business and other capital raising transactions                       $ 250,000,000              
Baker Mckenzie                                      
Loss Contingencies [Line Items]                                      
Contingency recorded as a result of settlement                         8,500,000 8,500,000   8,500,000   8,500,000  
Estimated insurance recoveries                         $ 4,000,000 4,000,000   4,000,000   4,000,000  
Reduction in litigation settlement contingency       $ 3,500,000     $ 1,000,000                     3,500,000  
Other expense                                     4,500,000
National Security Agreement                                      
Loss Contingencies [Line Items]                                      
Legal expenses                           $ 200,000   $ 300,000   $ 400,000 $ 1,700,000
SAFE Note Litigation                                      
Loss Contingencies [Line Items]                                      
Alleged investment amount                     $ 4,000,000                
Common stock issued (in shares)                     14,500                
SAFE Note Litigation | Pending Litigation                                      
Loss Contingencies [Line Items]                                      
Damages sought                     $ 7,600,000                
Stephen J. Purcell                                      
Loss Contingencies [Line Items]                                      
Damages sought         $ 80,000                            
Founder Litigation                                      
Loss Contingencies [Line Items]                                      
Payments for legal settlements           $ 100,000