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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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Subsequent Events (FY) (Details) - USD ($)									3 Months Ended		9 Months Ended		12 Months Ended
Subsequent Events (FY) (Details) - USD ($)	Sep. 15, 2024	Mar. 04, 2024	Feb. 19, 2024	Feb. 16, 2024	Jan. 12, 2024	Oct. 02, 2023	Sep. 07, 2023	Feb. 27, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Nov. 09, 2023	Nov. 06, 2023
Subsequent Event [Line Items]
Aggregate cost	$ 2,800,000	$ 4,000,000			$ 4,000,000	$ 4,000,000	$ 5,000,000	$ 10,000,000
Number of warrants exercised on net basis (in shares)															2,904,269
Exercise price (in dollars per share)					$ 0.96										$ 2
Warrant term (years)		5 years			5 years				5 years		5 years		5 years
Service revenue									$ 107,000	$ 339,000	$ 1,829,000	$ 2,066,000	$ 3,089,000	$ 299,000
Common Class A
Subsequent Event [Line Items]
Number of shares sold (in shares)		1,320,000			900,000	290,000	210,000
Purchase price (in dollars per share)	$ 0.55	$ 0.87			$ 1.09	$ 2	$ 7.43
Number of warrants exercised on net basis (in shares)	10,000,000
Exercise price (in dollars per share)									$ 575		$ 575		$ 575
Subsequent Event
Subsequent Event [Line Items]
Aggregate cost		$ 4,000,000			$ 4,000,000
Subsequent Event \| Experior Laboratories, Inc
Subsequent Event [Line Items]
Damages sought				$ 143,256
Subsequent Event \| SpaceX Rideshare Service Agreement \| D-Orbit SpA
Subsequent Event [Line Items]
Service revenue			$ 1,300,000
Subsequent Event \| Common Class A
Subsequent Event [Line Items]
Number of shares sold (in shares)		1,320,000			900,000
Purchase price (in dollars per share)		$ 0.87			$ 1.09
January Warrants
Subsequent Event [Line Items]
Number of warrants exercised on net basis (in shares)					3,687,000
Warrant term (years)					5 years
January Warrants \| Subsequent Event
Subsequent Event [Line Items]
Number of warrants exercised on net basis (in shares)					3,687,000
Exercise price (in dollars per share)					$ 0.96
Warrant term (years)					5 years
Prefunded Warrants
Subsequent Event [Line Items]
Number of warrants exercised on net basis (in shares)						1,710,000	462,948
Exercise price (in dollars per share)						$ 0.00001	$ 0.00001
Prefunded Warrants \| Subsequent Event
Subsequent Event [Line Items]
Number of warrants exercised on net basis (in shares)		3,304,280			2,787,000
November Warrants
Subsequent Event [Line Items]
Number of warrants exercised on net basis (in shares)																5,808,538
Exercise price (in dollars per share)																$ 3.86
Warrant term (years)																5 years
March Warrants
Subsequent Event [Line Items]
Number of warrants exercised on net basis (in shares)		4,624,280
Exercise price (in dollars per share)		$ 0.74
Warrant term (years)		5 years
March Warrants \| Subsequent Event
Subsequent Event [Line Items]
Number of warrants exercised on net basis (in shares)		4,624,280
Exercise price (in dollars per share)		$ 0.74
Warrant term (years)		5 years