SIGNIFICANT ACCOUNTING POLICIES - Value added taxes (Details) $ in Millions	12 Months Ended
Dec. 31, 2022 SGD ($)
SIGNIFICANT ACCOUNTING POLICIES
GST rate	7.00%
Minimum taxable turnover for the past 12 months for gst rate of 7%	$ 1
Minimum taxable turnover in the next 12 months for gst rate of 7%	$ 1

Represents the minimum taxable turnover for the past 12 months for gst rate of 7%.

No definition available.

Name:	GEHI_MinimumTaxableTurnoverForPast12MonthsForGstRateOf7
Namespace Prefix:	GEHI_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration