Additional amount of cash outflow for purchase of marketable security.

No definition available.

Name:	fiac_AdditionalPaymentsToAcquireMarketableSecurities
Namespace Prefix:	fiac_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Subsequent Events (Details) - USD ($)			1 Months Ended					5 Months Ended
Subsequent Events (Details) - USD ($)	Jan. 08, 2024	Apr. 25, 2023	Jul. 31, 2024	Jun. 30, 2024	May 31, 2024	Apr. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Subsequent Events [Abstract]
Additional cash deposited in Trust Account	$ 103,055	$ 487,500	$ 34,352	$ 34,352	$ 34,352	$ 34,352	$ 34,352	$ 812,500
Subsequent Event [Member]
Subsequent Events [Abstract]
Additional cash deposited in Trust Account			$ 34,352