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Fair Value Measurements - Schedule of the Changes in the Fair Value of Financial Instruments (Q3) (Details) - USD ($)
3 Months Ended 8 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2021
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Schedule of the Changes in the Fair Value of Financial Instruments [Line Items]                    
Change in fair value of warrant liabilities $ 243,659     $ (1,074,374)     $ (597,567) $ (190,079) $ (6,246,897) $ (6,358,235)
Private Placement Warrants [Member]                    
Schedule of the Changes in the Fair Value of Financial Instruments [Line Items]                    
Fair value, Beginning balance 191,035 $ 624,538 $ 377,857 883,952 $ 1,425,942 $ 3,086,701   377,857 3,086,701 3,086,701
Change in fair value of warrant liabilities 102,865 (433,503) 246,681 (468,803) (541,990) (1,660,759)        
Transfer out of Level 3 to Level 1                
Fair value, Ending balance 293,900 191,035 624,538 415,149 883,952 1,425,942 3,086,701 293,900 415,149 377,857
Public Warrants [Member]                    
Schedule of the Changes in the Fair Value of Financial Instruments [Line Items]                    
Fair value, Beginning balance 3,890,177   3,890,177 3,890,177
Change in fair value of warrant liabilities (2,088,501)        
Transfer out of Level 3 to Level 1           (1,801,676)       (1,801,676)
Fair value, Ending balance 3,890,177
Representative's Warrants [Member]                    
Schedule of the Changes in the Fair Value of Financial Instruments [Line Items]                    
Fair value, Beginning balance 14,801 48,386 29,274 68,484 110,475 239,144   29,274 239,144 239,144
Change in fair value of warrant liabilities 7,969 (33,585) 19,112 (36,321) (41,991) (128,669)        
Transfer out of Level 3 to Level 1                
Fair value, Ending balance 22,770 14,801 48,386 32,163 68,484 110,475 239,144 22,770 32,163 29,274
Warrant Liability [Member]                    
Schedule of the Changes in the Fair Value of Financial Instruments [Line Items]                    
Fair value, Beginning balance 205,836 672,924 407,131 952,436 1,536,417 7,216,022   407,131 7,216,022 7,216,022
Change in fair value of warrant liabilities 110,834 (467,088) 265,793 (505,124) (583,981) (3,877,929)        
Transfer out of Level 3 to Level 1           (1,801,676)       (1,801,676)
Fair value, Ending balance $ 316,670 $ 205,836 $ 672,924 $ 447,312 $ 952,436 $ 1,536,417 $ 7,216,022 $ 316,670 $ 447,312 $ 407,131