CONDENSED CONSOLIDATED BALANCE SHEETS - UNAUDITED - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Current Assets
Cash	$ 215,303	$ 108
Accounts Receivable	44,000
Total Current Assets	259,303	108
Total Assets	259,303	108
Current Liabilities
Accounts Payable and Accrued Expenses	2,585	9,900
Accrued Board of Director Compensation	79,000
Total Current Liabilities	81,585	9,900
Total Liabilities	81,585	9,900
Stockholders' Equity (Deficit)
Common Stock - $0.001 Par; 850,000,000 Shares Authorized, 238,136,969 and 231,053,636 Issued and Outstanding, Respectively	238,136	231,053
Additional Paid-In-Capital	1,043,809	625,192
Accumulated Deficit	(1,104,227)	(866,037)
Total Stockholders' Equity (Deficit)	177,718	(9,792)
Total Liabilities and Stockholders' Equity (Deficit)	$ 259,303	$ 108

No definition available.

Name:	grhi_AccruedBoardOfDirectorCompensation
Namespace Prefix:	grhi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.