XML 101 R82.htm IDEA: XBRL DOCUMENT v3.23.1

Lease (Details)	Dec. 31, 2022
Lease (Details) [Line Items]
Operating leases, with initial terms	5 years 6 months 29 days
Corporate Offices [Member]
Lease (Details) [Line Items]
Operating leases, with initial terms	3 years

X

- References

No definition available.

+ Details

Name:	gtec_LeaseDetailsLineItems
Namespace Prefix:	gtec_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Period between issuance and maturity of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

Name:	us-gaap_LongTermDebtTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=gtec_CorporateOfficesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: