Balance Sheet - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Current assets
Cash	$ 550,056	$ 46,285
Prepaid expense	176,656
Deferred offering cost		122,750
Total current assets	726,712	169,035
Cash held in trust account	81,097,820
TOTAL ASSETS	81,824,532	169,035
Current liabilities
Accounts payable	5,828	25,728
Accrued offering cost		20,939
Tax liability	117,549
Promissory note	286,368	125,000
TOTAL LIABILITIES	409,745	171,667
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY
Preferred shares, $0.0001 par value; 1,000,000 shares authorized; 0 issued and outstanding
Additional paid in capital	30,656	26,436
Accumulated deficit	286,052	(29,298)
Total Stockholders' Equity	316,967	(2,632)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	81,824,532	169,035
Common stock, shares subject to possible redemption
Current liabilities
Common stock; $0.0001 par value, subject to possible redemption, 8,000,000 shares at redemption value	81,097,820
Common stock, shares not subject to possible redemption
STOCKHOLDERS' EQUITY
common stock, $0.0001 par value; 100,000,000 shares authorized; 2,295,800 issued and outstanding (excluding 8,000,000 shares subject to possible redemption)	$ 259	$ 230

Amount of offering costs accrued but not yet paid as of the period date.

No definition available.

Name:	fgmc_AccruedOfferingCosts
Namespace Prefix:	fgmc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).