XML 98 R56.htm IDEA: XBRL DOCUMENT v3.23.3
Recurring Fair Value Measurements, Changes in Fair Value of Warrant Liabilities (Q3) (Details) - Level 3 [Member] - USD ($)
3 Months Ended 10 Months Ended 12 Months Ended
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2021
Dec. 31, 2022
Changes in Fair Value of Warrant Liabilities [Roll Forward]          
Fair value, beginning of period $ 784,000 $ 560,000 $ 560,000 $ 0 $ 5,824,000
Change in fair value 112,000 224,000 0 (4,767,000) (5,264,000)
Fair value, end of period $ 896,000 $ 784,000 $ 560,000 $ 5,824,000 $ 560,000