UNAUDITED BALANCE SHEETS - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Current asset:
Cash	$ 1,811	$ 6,551
Prepayments and deposits	13,967	18,523
Total current assets	15,778	25,074
Cash and investments held in trust account	33,430,500	33,080,038
TOTAL ASSETS	33,446,278	33,105,112
Current liabilities:
Accrued liabilities	104,994	17,124
Promissory notes – related party	1,540,219	1,446,751
Total current liabilities	1,645,213	1,463,875
Deferred underwriting compensation	1,725,000	1,725,000
TOTAL LIABILITIES	3,370,213	3,188,875
Ordinary shares subject to possible redemption 3,062,517 and 3,062,517 shares issued and outstanding at redemption value of $10.92 and $10.80 on March 31, 2026 and December 31, 2025, respectively	33,430,500	33,080,038
Shareholders’ deficit:
Ordinary shares, $0.001 par value; 50,000,000 shares authorized; 1,963,000 and 1,963,000 shares issued and outstanding (excluding 3,062,517 and 3,062,517 shares, subject to possible redemption as of March 31, 2026 and December 31, 2025, respectively)	1,963	1,963
Accumulated deficit	(3,356,398)	(3,165,764)
Total Shareholders’ deficit	(3,354,435)	(3,163,801)
TOTAL LIABILITIES, ORDINARY SHARES SUBJECT TO POSSIBLE REDEMPTION AND SHAREHOLDERS’ DEFICIT	$ 33,446,278	$ 33,105,112

No definition available.

Name:	fshpu_PromissoryNoteRelatedParty
Namespace Prefix:	fshpu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).