v3.26.1
STATEMENT OF CHANGES IN SHAREHOLDERS’ DEFICIT (Parentheticals)
8 Months Ended
Dec. 31, 2025
shares
Statement of Stockholders' Equity [Abstract]
Sale of private placement units (in Shares)
660,000
X
- Definition
Sale of private placement units.
+ References
No definition available.
+ Details
Name:
hvmc_SaleOfPrivatePlacementUnits
Namespace Prefix:
hvmc_
Data Type:
xbrli:sharesItemType
Balance Type:
na
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration